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Ontem — 7 de Setembro de 2026Cybersecurity News
  • ✇Firewall Daily – The Cyber Express
  • US Puts $10 Million Bounty on Alleged Iranian Cyber Chief Samiksha Jain
    The U.S. State Department has posted a $10 million reward for Amir Yaryab, a senior Iranian official accused of leading the Islamic Revolutionary Guard Corps Cyber-Electronic Command (IRGC-CEC) Cyber Operations Command and directing multiple hacking groups targeting critical infrastructure across the United States, Europe and the Middle East. According to the Rewards for Justice program, Yaryab allegedly oversees cyber operations conducted by IRGC-CEC-affiliated groups including CyberAv3ngers
     

US Puts $10 Million Bounty on Alleged Iranian Cyber Chief

7 de Setembro de 2026, 02:51

$10 Million Reward for Amir Yaryab

The U.S. State Department has posted a $10 million reward for Amir Yaryab, a senior Iranian official accused of leading the Islamic Revolutionary Guard Corps Cyber-Electronic Command (IRGC-CEC) Cyber Operations Command and directing multiple hacking groups targeting critical infrastructure across the United States, Europe and the Middle East. According to the Rewards for Justice program, Yaryab allegedly oversees cyber operations conducted by IRGC-CEC-affiliated groups including CyberAv3ngers, Dadeh Afzar Arman (DAA) and Mehrsam Andisheh Saz Nik (MASN). U.S. officials accuse these groups of using malware and conducting cyber and cyber-enabled information operations against civilian infrastructure worldwide.

$10 Million Reward for Amir Yaryab

The $10 million reward for Amir Yaryab seeks information leading to his identification or location. The offer applies to individuals acting at the direction or under the control of a foreign government who participate in malicious cyber activities against U.S. critical infrastructure in violation of the Computer Fraud and Abuse Act. [caption id="attachment_113961" align="aligncenter" width="600"]$10 million reward for Amir Yaryab Image Source: https://rewardsforjustice.net/[/caption] Yaryab is also accused of directing Shahid Hemmat and Shahid Shushtari, two groups linked to cyberattacks against U.S. organizations. The sectors allegedly targeted include defense, news, shipping, travel, energy, financial services and telecommunications. The six Iranian officials named in the advisory are linked to Iran's Islamic Revolutionary Guard Corps and its Cyber-Electronic Command.

Iranian Cyberattacks Target PLCs

The allegations also involve attacks against programmable logic controllers (PLCs), highlighting concerns around Iranian cyberattacks targeting industrial systems rather than focusing only on data theft. U.S. officials said Iranian-linked hackers compromised industrial control systems, specifically targeting the Vision series of PLCs manufactured by Israel-based Unitronics. These devices are used across water and wastewater, energy, food and beverage, manufacturing and healthcare sectors. The attackers exploited default credentials on the devices and left anti-Israel messages. Some of the compromises reportedly rendered the PLCs inoperative. The CyberAv3ngers group, which is linked to the IRGC-CEC, claimed responsibility for attacks against Unitronics Vision PLCs in October 2023. Beginning in November 2023, the group compromised default credentials in PLCs across the United States and left messages on the devices' digital screens.

CyberAv3ngers Attacks Critical Infrastructure

CyberAv3ngers has also claimed responsibility for attacks affecting other infrastructure. In October 2023, the group claimed it had breached ORPAK Systems, a provider of gas station solutions in Israel. The group said it had obtained the company's database and intended to publish it through its Telegram channel. The attack was reported to have disconnected 200 gasoline pumps from the system in the occupied Palestinian territories. In December 2023, CyberAv3ngers also claimed to possess and sell 1TB of data allegedly linked to Israel's electricity infrastructure. The group advertised the dataset for 5 Bitcoin, with an initial 100GB portion also offered at the same price.

U.S. Agencies Warn of PLC Cyberattacks

Concerns over critical infrastructure attacks involving PLCs continued into 2026. A joint advisory issued on April 7 by the FBI, CISA, NSA and other agencies warned that Iran-linked threat actors were actively exploiting internet-facing PLCs. The advisory said several organizations had experienced operational disruptions and financial losses after attackers interfered with industrial processes. The developments come amid broader U.S. actions against Iranian-linked cyber activity. The Justice Department accused Iran-connected hackers of breaching employee email accounts associated with the Department of Labor, the Federal Energy Regulatory Commission and multiple United Nations organizations. The Treasury Department also sanctioned Iranian nationals over cyberattacks targeting critical infrastructure. The State Department's reward offer places Amir Yaryab and the alleged activities of IRGC-CEC-linked groups at the center of the U.S. effort to identify individuals responsible for malicious cyber activity targeting critical infrastructure.
Antes de ontemCybersecurity News
  • ✇Security | CIO
  • Cyber resilience is a very human decision problem, not just a technology one
    Organizations today are not short of data, particularly in the domain of cyber. What many lack is a timely, trusted assessment that can help leaders act with greater confidence. When a cyber incident begins, the technical questions surface first. What happened? Which systems are affected? Is the activity contained? But the questions that often shape the outcome are rarely technical alone. Who is behind the activity? What are they trying to achieve? Is this an isolated e
     

Cyber resilience is a very human decision problem, not just a technology one

2 de Setembro de 2026, 06:00

Organizations today are not short of data, particularly in the domain of cyber. What many lack is a timely, trusted assessment that can help leaders act with greater confidence.

When a cyber incident begins, the technical questions surface first. What happened? Which systems are affected? Is the activity contained? But the questions that often shape the outcome are rarely technical alone. Who is behind the activity? What are they trying to achieve? Is this an isolated event or part of a broader campaign? Which customers, suppliers, assets or services are exposed? Is there a sanction, legal, regulatory or reputational dimension? And what is a proportionate immediate response while the facts are still incomplete?

This is why cyber is, in a meaningful sense, as much a human decision-making problem as a technological one. The OECD argues that digital security risk should be integrated into broader decision-making, rather than treated only as a technical issue. Tools can detect signals, spot patterns, correlate events and flag anomalies, but it takes people to decide what those signals mean, when to escalate, which trade-offs matter and what action the organization should take. In Moody’s recent whitepaper on supporting decision dominance through financial, corporate and trade intelligence, we make the case that the decisive moments in a cyber incident belong not only to systems, but to judgement.

That matters for CIOs and other technology decision-makers, because theirs is one of the most demanding decision environments in the enterprise. Reporting lines and structures vary by organization, but common themes tend to recur: technical complexity, compressed timelines, uncertain attribution and fragmented responsibility. Security teams may see indicators before they understand intent. Legal teams may need to assess obligations before the full scope of an incident is known. Communications teams often must prepare for scrutiny while operations are still working through containment. Business leaders may first need to decide when a decision must be made, then whether to pause a service, isolate a supplier, notify a regulator, issue a public statement or accept some temporary disruption to prevent greater harm.

The result can be a gap between signal and action, at a time when many organizations are experiencing a growing volume of cyber signals and alerts. Organizations commonly track mean time to detect and respond. But a less visible but equally consequential metric is decision latency: the time it takes to move from a technical signal to a shared understanding of what matters, and a decision about what to do. An organization can identify a threat quickly and still act too slowly if it cannot interpret the signal, convene the relevant stakeholders or agree on a proportionate response. The challenge is not simply speed — decisions made quickly but poorly can amplify harm. It is reducing decision latency without sacrificing judgement. This urgency is not theoretical and shouldn’t simply be admired. In her 2026 GCHQ Annual Lecture at Bletchley Park, Director Anne Keast-Butler described “a moment of consequence” shaped by the radical uncertainty. Her wider point is key for CIOs and their peers across the board: cyber security is a critical priority, and resilience depends on the ability to act with urgency, judgement and trusted partnerships.

From signal to context

Technical signals tend to become more useful when connected to wider context. A malicious domain, an unusual login, a compromised account or malware signature may tell a security team that something is happening. On its own, that signal rarely tells an executive what the organization should do next. Context reframes the question from “what does this indicator mean?” to “what decision should we make?”

That context can take several forms. Payment flows may provide additional context regarding the financial networks associated with an event or risk scenario. Ownership structures can help identify relationships between suppliers, counterparties or entities that may merit further review. Sanctions exposure may change the legal and compliance implications of a response. Adverse media may provide indicators of potential reputational or integrity concerns. Corporate linkages may reveal that what looks like a narrow technical event is in fact connected to a wider network of actors, assets or interests.

None of this removes uncertainty altogether, and no decision-maker should wait for perfect information before acting. What broader context does is improve the conditions under which judgement is exercised. Two incidents may look similar at the technical level but demand different leadership responses. One may be opportunistic criminal activity with limited broader consequence. Another may involve connections to a sanctioned entity, an organized crime network, a critical supplier or a state-linked ecosystem. The signal may look similar, but the appropriate response is not.

A cross-discipline exercise

This distinction matters because cyber response is often not contained within the security function, especially in a learning organization. A serious incident typically draws in teams from across multiple disciplines, such as security, IT, legal, risk, compliance, finance, procurement, communications and business operations. It may also involve external parties such as law enforcement, intelligence agencies, regulators, financial institutions, infrastructure operators and key suppliers. The CIO will not own every lever in this environment, and organizational structure will influence how close to the centre of the systems they sit, dependencies and information flows that affect the organization’s ability to respond effectively. Is the CIO supported or supporting during an incident? What leeway is afforded the CIO to act when required?

A common challenge in cyber response is not the absence of technical capability, but the absence, or fragility, of a shared decision model. Teams will have data, dashboards and incident playbooks in place, but still lack clarity on who decides, what information is needed, which trade-offs are acceptable and how quickly business context can be brought to bear. Ensuring a common operating picture — one that gives the leadership team a shared understanding of the same facts — tends to be a differentiator between organizations that respond coherently and those that do not.

For CIOs and CEOs, this is an organizational design problem as much as a technology one. Experience suggests that a cyber strategy that stands alone may be less effective than one integrated into the organization’s broader strategy from the outset. Cyber maturity should not be judged only by the number of controls deployed, alerts processed or systems monitored, but also by the quality of the decisions an organization can make under pressure. Using scenarios to test decision making can help refine organizational design, highlight blockers that may emerge at critical times, and improve leaders’ understanding of the potential consequences of poor decision making. That wider coordination challenge is reflected in CISA’s incident response guidance, which treats serious cyber incidents as events requiring coordination across multiple stakeholders.

Where integrated intelligence adds value

This is where integrated intelligence has a role to play. Its value lies less in the sheer volume of information it provides — most organizations already have more data than they can absorb — and more in its ability to help prioritize, separating signal from noise. It can help distinguish activity that is technically interesting from activity that may be strategically material. Used well, it can help identify enabling networks associated with an attack, inform disruption options and help focus scarce defensive resources on the assets, relationships and dependencies most likely to matter.

The aim is not to know everything. It is to develop sufficient understanding of the most relevant factors early enough to support timely actions while meaningful response options remain available.

CIOs can make this practical by asking five questions:

  1. Which cyber decisions must be made in the first moments, the first hour, first day and first week of a serious incident?
  2. Who is authorized to make them, what is their availability 24/7 and who deputizes in their absence?
  3. Can technical indicators be linked quickly to business impact, financial exposure, legal risk, supplier dependency and external context?
  4. Can security teams escalate without creating unnecessary alarm?
  5. Can the CEO and board be briefed in decision-ready language, with recommendations rather than technical detail alone?

These questions move the conversation from reporting to leadership, and they reflect the human reality of cyber defence. Employees, analysts, managers and executives are asked to make repeated judgement calls under uncertainty, often with too much noise and too little time. Attackers are often well placed to exploit that reality; resilient organizations tend to design around it

Beyond visibility

Cybersecurity has spent years improving visibility, and that work remains essential. But visibility alone does not create resilience. The next challenge is decision quality.

For CIOs, the strategic shift is that cyber signals become most valuable when connected to real-world consequences: financial, operational, legal, reputational and geopolitical. In a fast-moving incident, the critical question is rarely whether the organization has more data. It is whether leaders can understand what matters, decide what to do and act while meaningful response options remain available.

The organizations that are often most effective in this environment are not necessarily those with the most dashboards. They are often those that have worked to reduce decision latency without sacrificing judgement, often through rehearsal, scenario testing and learning from gaps identified during those exercises. In an environment shaped by ambiguity, compressed timelines and interconnected risk, the ability to make better decisions faster may become one of the defining measures of not just cyber resilience, but of leadership itself.

  • ✇HACKMAGEDDON
  • 1-15 August 2026 Cyber Attacks Timeline Paolo Passeri
    Cyber crime dominated the first half of August 2026, driving 108 confirmed incidents in just fifteen days. Malware remained the attacker's weapon of choice, a third of breaches traced back to an exploited public-facing application, and Public Administration emerged as the hardest-hit sector.
     

1-15 August 2026 Cyber Attacks Timeline

2 de Setembro de 2026, 06:46
Cyber crime dominated the first half of August 2026, driving 108 confirmed incidents in just fifteen days. Malware remained the attacker's weapon of choice, a third of breaches traced back to an exploited public-facing application, and Public Administration emerged as the hardest-hit sector.

1-15 August 2026 Cyber Attacks Timeline Infographic

2 de Setembro de 2026, 06:46
A single-page visual breakdown of the 108 cyber attacks recorded between August 1–15, 2026 — from the motivations behind them and the sectors hit hardest, to the tactics attackers used to get in.

Anthropic Warns Commodity Infostealers Are Hijacking Claude Sessions to Drain Paid Usage

31 de Agosto de 2026, 07:09

A session cookie depicted as a key being stolen from a browser window while a two-factor authentication prompt sits bypassed, illustrating Claude session hijacking by infostealer malware.

Anthropic warned users over the weekend that a threat actor is using widely available infostealer malware to hijack active Claude login sessions from infected computers, then using those sessions to run up victims' paid usage without ever needing a password or a two-factor code.

The company said it identified six malware families in the campaign: Vidar, LummaC2, StealC, RedLine and Acreed on Windows, and Atomic Stealer, known as AMOS, on a smaller number of macOS machines. None are novel or bespoke. All are commodity stealers sold or rented on criminal dark web marketplaces, and all work the same basic way - harvesting locally stored browser credentials, autofill data and authentication cookies from a compromised machine and shipping them to an operator's server.

Claude Session Cookies Heist

What makes the campaign notable is the target rather than the technique. Session cookies represent an already-authenticated state, so an attacker who replays a stolen Claude session token steps past both the account password and multi-factor authentication entirely. This is textbook session hijacking; the new element is that paid AI assistant subscriptions have become worth stealing as a commodity in their own right, alongside the streaming and gaming accounts that stealer log markets have traded for years.

Anthropic told affected users that the tell sign for them was a usage pattern that made no sense. Limits appearing to refill and then drain while the account owner was not using Claude was the biggest red flag.

Also read: Hacker Used Claude AI to Automate Reconnaissance, Harvest Credentials and Penetrate Networks

The company said it is signing affected users out of their sessions, removing saved payment methods from compromised accounts and refunding unauthorized charges identified during its investigation. It also stressed that the malware is not connected to Claude, was not installed through Claude and did not result from anything users did with the product. Infections trace to the usual vectors — pirated software and other illicit downloads.

A Reddit user going by the moniker "WorriedAssociate7029" received the notification from Anthropic and confirmed that he mistakenly installed an infostealer from "a reputable Russian underground forum" while downloading a pirated game. "I got fooled like a rookie by downloading a cracked game," he said.

Intrestingly though, the user claimed of using Claude's Opus model to detect and remove the malware.

"I use the models exclusively in permission-free mode on my entire computer," the Reddit user said.
"Opus was very efficient. It scanned for active processes, then listed my recent downloads. It found the virus almost instantly. My prompt was very simple: "I think I downloaded a virus recently. My login credentials were stolen. Audit the malware and remove it if you find it. Report on the extent of the damage. He deactivated the virus and created a folder on the desktop containing all the relevant information (including the deactivated virus, lol)."

Anthropic has not disclosed how many accounts were affected.

The security implications reach past the billing line. AI assistant accounts increasingly hold conversation histories, uploaded documents, connected data sources and, in developer configurations, API keys and repository access. A hijacked session inherits whatever the account can reach. Organizations that have rolled out AI tools without folding them into identity and access management now have a class of high-value session token sitting in employee browsers, largely outside the monitoring applied to corporate SaaS.

Anthropic's guidance to compromised users is the standard infostealer playbook. Change credentials across every service used on the affected machine, revoke active sessions, and actually remove the malware, since signing out does not clear an infection that will simply harvest the next session.

There is no formal regulatory hook here yet — no confirmed breach of the provider itself and no disclosure obligation triggered on Anthropic's side. But the episode lands as regulators and standards bodies are working out how AI system security fits existing frameworks, and it illustrates a gap those frameworks have barely addressed - the weakest point in an AI deployment may be an unmanaged endpoint rather than the model or the platform.

  • ✇Security | CIO
  • Salesforce, ServiceNow data targeted in ‘City-Forum’ attacks
    Records held in Salesforce and ServiceNow systems are under attack leaving user data exposed, according to researchers at Reco. The attack appears similar to those perpetrated by the extortion group ShinyHunters, Reco said. ShinyHunters has been particularly active this year, attacking dating sites in January and Oracle in June, and there are fears that they could have found a new target. Reco has named the latest campaign of attacks “City-Forum,” after a domain name
     

Salesforce, ServiceNow data targeted in ‘City-Forum’ attacks

14 de Agosto de 2026, 10:36

Records held in Salesforce and ServiceNow systems are under attack leaving user data exposed, according to researchers at Reco.

The attack appears similar to those perpetrated by the extortion group ShinyHunters, Reco said. ShinyHunters has been particularly active this year, attacking dating sites in January and Oracle in June, and there are fears that they could have found a new target.

Reco has named the latest campaign of attacks “City-Forum,” after a domain name associated with the attackers’ IP address. While it bears similarities to Shiny Hunters’ past exploits, there are also differences. This time around the attacker penetrated the systems through the UI-API layer, an attack point that Reco had not seen used before, and had also created its own toolset to carry out the attack. It is also targeting a native ServiceNow Service Portal search endpoint that has almost no online documentation or well-known open-source tools.

The threat is particularly noteworthy, Reco said, as the attackers have studied the services to map different common data-leak vectors, a sign of an advanced approach.

A Salesforce spokesperson said that it was aware of the campaign in which malicious actors are exploiting customers’ overly permissive Experience Cloud guest user configurations in the campaign to potentially access more data than targeted organizations intended.

“This issue highlights risks stemming from misconfigurations, such as overly permissive guest user profiles, and not from a Salesforce vulnerability,” the spokesperson said.

Regardless of who the attackers were and how the attack was carried out, one thing should be clear: Organizations should be increasingly careful about who they give login credentials to.

This article first appeared on CSO.

July 2026 Cyber Attacks Statistics Infographic

13 de Agosto de 2026, 06:26
One page, every number that matters. This infographic distills July 2026's 188 confirmed cyber attacks into a fast visual read — who's behind them, how they broke in, what they targeted, and where in the world it happened.
  • ✇HACKMAGEDDON
  • July 2026 Cyber Attacks Statistics Paolo Passeri
    July 2026 saw 188 confirmed cyber attacks across 69 countries, with financially motivated Cyber Crime driving three in four incidents. Malware remained attackers' weapon of choice, exposed public-facing applications were the most common way in, and Information & Communication infrastructure absorbed the heaviest share of targeting. Here's the full breakdown of who attacked, how, and where.
     

July 2026 Cyber Attacks Statistics

13 de Agosto de 2026, 06:26
July 2026 saw 188 confirmed cyber attacks across 69 countries, with financially motivated Cyber Crime driving three in four incidents. Malware remained attackers' weapon of choice, exposed public-facing applications were the most common way in, and Information & Communication infrastructure absorbed the heaviest share of targeting. Here's the full breakdown of who attacked, how, and where.

US, South Korea Warn of Growing Gunra Ransomware Threat

12 de Agosto de 2026, 03:39

U.S. and South Korean authorities warn about the growing Gunra ransomware threat as the operation expands its capabilities and affiliate network.

The post US, South Korea Warn of Growing Gunra Ransomware Threat appeared first on TechRepublic.

  • ✇Security | CIO
  • Introducing ResOps, the operating discipline built for quick, clean recovery
    Organizations have spent years and billions of dollars hardening their defenses against cyberattacks, but prevention alone no longer settles the question that matters most to a board. Accenture’s State of Cybersecurity Resilience 2025 report stated that organizations had faced an average of 1,876 cyberattacks in a single quarter, a 75% increase over the prior year. What’s more, 63% of the surveyed executives cited a rapidly evolving threat landscape as their biggest challe
     

Introducing ResOps, the operating discipline built for quick, clean recovery

10 de Agosto de 2026, 16:03

Organizations have spent years and billions of dollars hardening their defenses against cyberattacks, but prevention alone no longer settles the question that matters most to a board. Accenture’s State of Cybersecurity Resilience 2025 report stated that organizations had faced an average of 1,876 cyberattacks in a single quarter, a 75% increase over the prior year. What’s more, 63% of the surveyed executives cited a rapidly evolving threat landscape as their biggest challenge. In such a dangerous environment, organizations must assume that eventually an attack will succeed, so IT has to be able to prove that it can recover cleanly once an attacker gets in.

Attackers already understand this shift. Mandiant, a Google subsidiary, reported in its M-Trends 2026 Report that “adversaries are systematically targeting infrastructure such as backups, identity services, and virtualization layers to deny recovery, putting immense pressure on organizations to pay ransom demands or risk losing the ability to recover.” Backup systems have become a primary target.

Demonstrating recoverability has been difficult for IT, because backup, recovery, cybersecurity, and disaster recovery all evolved as separate disciplines, with each solving its own piece of the problem essentially independently. That fragmentation leaves organizations unable to answer basic questions about their own ability to bounce back.

A new discipline, resilience operations (ResOps) has emerged to close the gap between performing backups and proving that an organization can actually use them to recover. ResOps functions as an operating discipline that focuses business, security, and infrastructure teams on recovering critical functions quickly while avoiding reinfection. This discipline also provides the teams with a common framework so they can pivot away from assumptions and anecdotes to instead quantify resilience in a repeatable, sustainable way. Spot-testing of discrete systems is not enough. Organizations need to perform regular tests of the entire system if it is to pivot away from assumptions and anecdotes to quantify resilience in a repeatable, sustainable way.

Additionally, to measure the effectiveness of recovery, the industry needs an updated resilience metric, mean time to clean recovery (MTCR). Metrics such as recovery time objective (RTO) and recovery point objective (RPO) still matter, but neither confirms that restored data is free of compromise. MTCR closes that gap, by measuring how long it takes to validate that a recovered system is both online and clean, giving CIOs, CISOs, and boards a single evidence-based answer during an attack.

Building that kind of resilience starts with architecture. Depending on a single vendor or platform across multiple heterogeneous environments introduces a single point of failure. Diversity is a strength, especially when it comes to the identity infrastructure. Recovery systems that share the same identity layer with production will fail if the identity systems are compromised, so more and more organizations now stand up an independent identity infrastructure solely for recovery. Immutable air-gapped storage rounds out the picture, but it remains rare among organizations, even for their most critical workloads. Finally, during recovery execution, backups should be paired with clean room validation of workloads before anything returns to production.

“For years the industry measured resilience by how fast we could restore data,” says Bill O’Connell, chief security officer at Commvault. “Now the measure that matters is whether we can prove, with evidence, that what we restored is actually clean.”

Vendors such as Commvault are building the infrastructure to support this shift, giving organizations the tools for testing recovery as a complete system rather than a collection of individual failure scenarios and to walk into the boardroom with proof instead of assumptions. But whatever the underlying backup-and-recovery infrastructure in this increasingly dangerous threat environment, organizations need to make attaining clean recovery their goal.

Build real resilience
Learn how organizations are proving recoverability and achieving clean recovery when it matters most.

  • ✇Firewall Daily – The Cyber Express
  • Ransomware Kingpin Gets 16 Years for Global Cyberattacks Samiksha Jain
    A Ransom Cartel ransomware leader has been sentenced to 16 years in prison after being convicted of conspiracy to commit offenses against the United States, conspiracy to commit wire fraud, and aggravated identity theft, according to the U.S. Department of Justice. Maksim Silnikau, a 40-year-old Belarusian national, was identified in court documents as the creator and administrator of the Ransom Cartel ransomware strain, which was developed in 2021. Silnikau had been active on Russian-speakin
     

Ransomware Kingpin Gets 16 Years for Global Cyberattacks

10 de Agosto de 2026, 04:54

Ransom Cartel ransomware

A Ransom Cartel ransomware leader has been sentenced to 16 years in prison after being convicted of conspiracy to commit offenses against the United States, conspiracy to commit wire fraud, and aggravated identity theft, according to the U.S. Department of Justice. Maksim Silnikau, a 40-year-old Belarusian national, was identified in court documents as the creator and administrator of the Ransom Cartel ransomware strain, which was developed in 2021. Silnikau had been active on Russian-speaking cybercrime forums since at least 2005 and was also a member of the cybercrime website Direct Connection between 2011 and 2016.

Ransom Cartel Ransomware Operation

Beginning in May 2021, Silnikau developed the ransomware scheme and recruited participants through cybercrime forums. He distributed information and tools to participants, including stolen credentials linked to compromised computers and tools designed to encrypt or lock those systems. Silnikau also maintained a hidden website used by himself and his co-conspirators to monitor and control ransomware operations. According to the court documents, the website provided a platform for the group to communicate with one another, interact with victims, send and negotiate ransom demands, and manage the distribution of funds among the conspirators. The operation targeted companies between 2021 and 2023. During that period, Ransom Cartel ransomware conspirators carried out attacks against at least 18 companies around the world, including organizations based in California, New York, Nebraska, and other countries outside the United States.

Ransomware Attacks Targeted Companies Worldwide

The ransomware attacks involved data theft and monetary demands. The attackers sought payment in exchange for providing keys to unlock stolen data or for promises not to publish the information taken from victims. The operation’s growth was disrupted following Silnikau’s arrest in July 2023. He was later extradited from Poland to face prosecution in the Eastern District of Virginia and the District of New Jersey. The sentencing announcement was made by Theophani K. Stamos, First Assistant U.S. Attorney for the Eastern District of Virginia; Acting Special Agent in Charge Andrew Forrest of the U.S. Secret Service Criminal Investigative Division; Chris Ormerod, Special Agent in Charge of the FBI Kansas City Field Office; and Craig L. Tremaroli, Special Agent in Charge of the FBI Albany Field Office.

Maksim Silnikau Sentenced to 16 Years

The Justice Department’s Office of International Affairs provided substantial assistance with Silnikau’s extradition and the collection of evidence. The U.S. Attorney’s Office for the District of New Jersey and the Computer Crime and Intellectual Property section also assisted with the case. Assistant U.S. Attorney Jonathan S. Keim and former Assistant U.S. Attorney Zoe Bedell prosecuted the case. The 16 years in prison sentence follows the disruption of an international ransomware operation that targeted at least 18 companies during its active period. Silnikau’s role, according to court documents, extended across the development and administration of the ransomware strain, recruitment of participants, provision of attack tools, victim communications, and management of funds generated through the operation.
  • ✇Security Affairs
  • Webmail CSS Attacks Expose a New Risk for AI-Powered Email Tools Pierluigi Paganini
    CSS attacks on major webmail services can steal credentials, hijack sessions and manipulate AI tools connected to users’ inboxes. PortSwigger researcher Gareth Heyes demonstrated something that should make every webmail team a little nervous: plain CSS, the styling language that’s supposed to just make text look nice, can be weaponized to steal passwords, hijack sessions, and manipulate AI tools reading your inbox. The research covers real attack chains against Outlook, Gmail, Fastmail, Prot
     

Webmail CSS Attacks Expose a New Risk for AI-Powered Email Tools

9 de Agosto de 2026, 05:01

CSS attacks on major webmail services can steal credentials, hijack sessions and manipulate AI tools connected to users’ inboxes.

PortSwigger researcher Gareth Heyes demonstrated something that should make every webmail team a little nervous: plain CSS, the styling language that’s supposed to just make text look nice, can be weaponized to steal passwords, hijack sessions, and manipulate AI tools reading your inbox. The research covers real attack chains against Outlook, Gmail, Fastmail, Proton Mail, Yahoo Mail, and AOL Mail.

The core idea is that email clients let HTML and CSS through with the assumption that styling can’t reach outside the message it’s attached to. Heyes found ways to break that assumption using two basic approaches: abusing CSS features webmail already permits, or exploiting a gap between what a content sanitizer thinks it approved and what the browser actually renders. Either route can let content inside an untrusted email interact with the trusted interface surrounding it.

“It’s quite common for webmail clients to render untrusted CSS in a trusted UI. They attempt to make this safe using CSS sanitization.” Heyes explains. “I looked at the various “allow listed” CSS properties and HTML. With the goal of abusing them to spoof UI actions, control browsers, take over accounts or steal tokens. I targeted Fastmail, OpenAI’s Atlas, Firefox, AOL Mail, Yahoo Mail and Outlook.”

The Outlook chain is the most alarming one to picture in action. Allowed label elements can trigger controls that live outside the email itself, and Outlook’s own JavaScript can turn sanitized custom attributes into new page elements carrying CSS that bypasses the sanitizer’s rules entirely. Heyes used this to disguise a dropdown menu as a password field, and because Firefox resets its roughly one-second selection timer whenever that dropdown moves offscreen, the attack captures whatever the victim types in something close to real time.

“A CSS gadget occurs when some existing JavaScript appends an element to the DOM with a CSS property or value outside the webmail CSS sanitizer allow list. We can use this to break out of trust boundaries.” continues the report.

“This is a real CSS gadget that I found on Outlook. Here Outlook “allow lists” custom data attributes. One of the libraries they use appends to the DOM with an element and CSS property value outside their allow list. In this case position:fixed which allows you to position an element anywhere on the page. Which breaks the trust boundaries of an email message. We can then use this gadget to break out of the message window and deface Outlook.”

Yahoo Mail and AOL Mail opened a different door, one involving something as mundane as copy and paste. In Firefox, HTML pasted into a draft can briefly keep its active styling before sanitization strips it out, and Heyes used that gap to leak a 12-character login token during a Medium sign-in flow, enough for an attacker’s server to reconstruct the token and log in as the victim.

“They have a login via email feature that produces a 12 character hex token. If you can obtain this token then you can login as the user. An attacker can just initiate this process with the victim’s email then create some CSS to copy to the clipboard, the victim then only needs to paste into a draft and then their token is stolen.” the researcher explains.

There’s also a clever workaround for cases where Content Security Policy blocks external resource requests entirely. Given the ability to inject styles and a numeric token displayed as plain text in an email, CSS alone can determine which digits appear and how often, then arrange links so a single click reveals that information to an attacker’s server. No JavaScript required, just careful use of selectors and visibility rules.

The AI-connected piece of this research is where things get genuinely unsettling. Gmail’s image-set() fallback could trigger an external request despite sanitization, and Heyes chained that into an indirect prompt-injection email processed by Anthropic’s Claude Cowork through a connected Gmail integration. The injected instructions caused it to retrieve the token and place it in an HTML draft; viewing the draft leaked it, exactly the kind of AI-agent trap that turns a normal “summarize my inbox” request into unintended data exposure. A separate demonstration against OpenAI’s Atlas browser used hidden CSS pseudo-elements to show a human harmless text while an AI model read a completely different, hidden instruction underneath.

Not every provider is equally exposed right now. Fastmail patched two CSS mutation bugs Heyes reported, and a Proton Mail proxy bypass stopped working when he retested it before publication. Outlook’s label-jacking trick and Gmail’s image-set() bypass, on the other hand, both still worked as of August 6, and the paper doesn’t confirm whether the full Outlook password-capture chain has been fixed at all.

Heyes and PortSwigger published proof-of-concept code publicly alongside the research, and their guidance for webmail providers is fairly specific: isolate HTML email inside sandboxed iframes, restrict CSS to strict character allow-lists, check for dangerous CSS gadgets before permitting custom attributes, and block image requests to anything outside an approved domain list. None of that is exotic advice, but it does mean rethinking how much trust gets extended to something as apparently harmless as a stylesheet.

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Pierluigi Paganini

(SecurityAffairs – hacking, CSS Attacks)

  • ✇Security | CIO
  • Snowflake attacker pleads guilty to hack of 165 companies’ data
    A Canadian hacker has admitted being part of a group responsible for several major cyberattacks. Connor Riley Moucka pleaded guilty to being part of a coterie of hackers that hit 165 organizations, resulting in the theft of customer records and the extortion of millions of dollars. Industry sources have identified Moucka as one of the main players in attacks on data hosted by cloud data warehouse Snowflake. Companies affected by the hacks include the likes of AT&T,
     

Snowflake attacker pleads guilty to hack of 165 companies’ data

7 de Agosto de 2026, 10:26

A Canadian hacker has admitted being part of a group responsible for several major cyberattacks. Connor Riley Moucka pleaded guilty to being part of a coterie of hackers that hit 165 organizations, resulting in the theft of customer records and the extortion of millions of dollars.

Industry sources have identified Moucka as one of the main players in attacks on data hosted by cloud data warehouse Snowflake. Companies affected by the hacks include the likes of AT&T, Ticketmaster and the Neiman Marcus Group.

He worked with two other hackers: John Edward Binns and Cameron John Wagenius. Binns was not in US custody as of April 2026, while Wagenius, going by the name of Kiberphant0m, was arrested in January 2025 and pleaded guilty in July that year

Moucka and other members of the group used stolen login credentials to compromise data belonging to at least 165 customers of a US-based software-as-a-service company. This unauthorized access was used to steal billions of sensitive customer records and download terabytes of information,

“Connor Moucka hacked over 150 companies and organizations, obtained extremely sensitive information, and extorted the victims for millions of dollars. Today’s guilty plea serves as a reminder to all cybercriminals, regardless of where they live, that they cannot hide behind a wall of anonymity. You will be found and brought to justice,” said assistant attorney general A. Tysen Duva of the Justice Department’s Criminal Division

The trial is the result of a coordinated worldwide action against the Snowflake group. The investigation was led by the FBI but benefited from contributions from the Royal Canadian Mounted Police, the Australian Federal Police, Spain’s Guardia Civil, the Security Service of Ukraine and the Turkish National Police.

This article first appeared on CSO.

16-31 July 2026 Cyber Attacks Timeline Infographic

6 de Agosto de 2026, 08:12
103 confirmed cyber incidents reported between 15 and 31 July 2026 — including attacker motivations, top techniques, initial access vectors, hardest-hit sectors, and targeted countries, all in one interactive HACKMAGEDDON timeline.
  • ✇HACKMAGEDDON
  • 16-31 July 2026 Cyber Attacks Timeline Paolo Passeri
    103 confirmed cyber incidents reported between 15 and 31 July 2026 — including attacker motivations, top techniques, initial access vectors, hardest-hit sectors, and targeted countries, all in one interactive HACKMAGEDDON timeline.
     

16-31 July 2026 Cyber Attacks Timeline

6 de Agosto de 2026, 08:12
103 confirmed cyber incidents reported between 15 and 31 July 2026 — including attacker motivations, top techniques, initial access vectors, hardest-hit sectors, and targeted countries, all in one interactive HACKMAGEDDON timeline.
  • ✇Firewall Daily – The Cyber Express
  • Amsterdam’s De Bijenkorf Hit by Logistics Cyberattack, Orders Delayed Samiksha Jain
    A De Bijenkorf cyberattack involving one of the retailer's external logistics partners has disrupted order processing, returns, and refunds while raising concerns over potential customer data exposure. The Dutch luxury department store chain said the security incident occurred within the systems of a third-party logistics provider, adding that there is currently no evidence that its own infrastructure was compromised. The Amsterdam-based retailer confirmed that customers can continue placing on
     

Amsterdam’s De Bijenkorf Hit by Logistics Cyberattack, Orders Delayed

De Bijenkorf cyberattack

A De Bijenkorf cyberattack involving one of the retailer's external logistics partners has disrupted order processing, returns, and refunds while raising concerns over potential customer data exposure. The Dutch luxury department store chain said the security incident occurred within the systems of a third-party logistics provider, adding that there is currently no evidence that its own infrastructure was compromised.

The Amsterdam-based retailer confirmed that customers can continue placing online orders and stores remain open. However, deliveries, returns, and refunds are expected to take longer than usual as the investigation continues.

De Bijenkorf Confirms Third-Party Security Incident

According to De Bijenkorf, unauthorized individuals gained access to part of its logistics partner's systems. The logistics provider responded by immediately blocking the unauthorized access and implementing additional security measures.

An external investigation is now underway to determine the cause of the incident, its scope, and whether customer information was affected.

As a precaution, De Bijenkorf has informed customers about the incident and submitted a report to the Dutch Data Protection Authority while awaiting the investigation's findings.

What Customer Data Could Be Affected in De Bijenkorf Cyberattack?

The retailer said investigators are still determining whether any personal information has been compromised.

Based on the information currently available, data that may be involved includes:

  • Customer names and contact details, including email addresses, postal addresses, and phone numbers.
  • Information related to online purchases, such as ordered products, pricing, discounts, delivery details, and the payment method used.
  • For business customers, company names and VAT numbers stored in My Account may also be involved.

De Bijenkorf emphasized that sensitive financial information is not part of the incident. The company said payment details, bank account numbers, credit card information, usernames, and passwords were not accessed.

Investigation Continues as Customers Await Confirmation

The retailer said it is still investigating whether individual customers have been affected. Customers whose information is confirmed to be involved will receive direct communication via email from info@debijenkorf.nl.

For those who have not yet received a notification, the company said it cannot currently rule out the possibility that their information was included in the incident until the investigation is completed.

De Bijenkorf also stressed that no login credentials were compromised, meaning unauthorized individuals cannot access customer accounts using stolen usernames or passwords.

Retailer Warns Customers About Phishing Risk

Although the investigation remains ongoing, De Bijenkorf warned customers to stay alert for a possible phishing risk if personal information is ultimately found to have been exposed.

The retailer advised customers not to click on suspicious links or open unexpected attachments. It also reminded customers never to share passwords, payment information, or personal details through email or phone calls.

The company said it will never request credit card details, gift card information, or other sensitive information via email.

Logistics Cyberattacks Continue to Disrupt Supply Chains

The incident adds to a growing list of attacks targeting organizations that support retail operations rather than retailers directly. A logistics cyberattack can interrupt deliveries, returns, and customer service even when the affected retailer's own systems remain operational.

In July 2026, a ransomware attack on Japan's largest refrigerated logistics company disrupted food deliveries across the country, causing supply shortages for restaurant chains, including Kentucky Fried Chicken. The incident demonstrated how cyberattacks on logistics providers can quickly impact downstream retail operations and customer services.

For now, De Bijenkorf said its stores remain open, online ordering continues to operate, and there are no indications that its own systems have been compromised. The retailer said it will provide additional updates as the external investigation establishes whether customer data was affected and the full extent of the incident.

OctLurk and SilkLurk Windows Backdoors Target Governments in 6 Countries

Kaspersky links OctLurk and SilkLurk to cyberespionage attacks stealing passwords, emails and files from government systems in six countries since January 2025.

“I’m Allowed”: Hackers Use Simple Claims to Bypass AI Guardrails

Cisco Talos found hackers using simple authorization claims to bypass AI guardrails, build DDoS attack tools, steal credentials and access live camera services.

Shai-Hulud npm Worm Returns, Poisoning Over 1,280 npm Packages

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