Infostealer intelligence has become one of the important tool in cybersecurity as malware has become one of the most efficient tools in a cybercriminal's kit. A single infected laptop can leak saved passwords, browser cookies, autofill data, and enough machine details for an attacker to impersonate the user outright.
Stolen session cookies are especially damaging because they let intruders skip multi-factor authentication entirely. That makes the choice of an intelligence vendor in this spac
Infostealer intelligence has become one of the important tool in cybersecurity as malware has become one of the most efficient tools in a cybercriminal's kit. A single infected laptop can leak saved passwords, browser cookies, autofill data, and enough machine details for an attacker to impersonate the user outright. Stolen session cookies are especially damaging because they let intruders skip multi-factor authentication entirely. That makes the choice of an intelligence vendor in this space an operational decision, not a box-checking exercise.
Top 10 Infostealer Intelligence Vendors
1. Cyble
Cyble is a preferred vendor for organizations that want infostealer data inside a broader threat intelligence workflow rather than as a standalone feed. Its Cyble Vision platform combines compromised credential monitoring with dark web surveillance, brand protection, and attack surface management, so a leaked employee login can be connected to related exposure elsewhere. The company's research arm, Cyble Research and Intelligence Labs, publishes regular analysis of new stealer families and campaigns. For teams that need context across several threat categories in a single console, Cyble is a strong starting point. Buyers focused narrowly on deep machine-level forensics should test that capability directly during a trial.
2. Flare
Flare is a full CTI platform that treats stealer logs as a core dataset rather than an add-on. Its interface is one of the cleanest in the category, which lowers the learning curve for analysts. Coverage of stealer logs is broad, and the platform provides solid details about infected machines.
3. SpyCloud
SpyCloud focuses on identity threat protection and is particularly strong on session data. It tracks stolen cookies and helps organizations invalidate compromised sessions before attackers can use them. That focus makes it a natural fit for teams worried about MFA bypass. Its free public tooling is more limited than some competitors'.
4. Breachsense
Breachsense takes an API-first approach to dark web and stealer-log monitoring. Its backend is consistent and well-documented, which appeals to teams that plan to pipe alerts directly into a SIEM or SOAR rather than work in a vendor's dashboard.
5. Lunar (Webz.io)
Lunar is built on Webz.io's web data infrastructure and stands out for generous free access to compromised-credential monitoring. Smaller organizations can get meaningful visibility without a large contract. Its API is less mature than those of the leaders, so heavy integration work may take more effort.
6. SOCRadar
SOCRadar positions itself as an extended threat intelligence provider, and its infostealer data sits alongside external attack surface monitoring and digital risk protection. Machine context is a notable strength. Teams looking for a specialist tool may find the platform's breadth more than they need.
7. Constella Intelligence
Constella approaches infostealers through the lens of identity risk, drawing on a large repository of breach and exposure records. Session tracking and API capabilities are both well regarded, which makes it useful for fraud prevention and account takeover defense.
8. Recorded Future
Recorded Future is one of the best-known names in threat intelligence. Infostealer data is one module among many in its intelligence platform. Machine context and API quality are strong, though session-level detail trails the more focused vendors. Organizations already using Recorded Future for other intelligence may find it convenient to extend coverage here.
9. NordStellar
NordStellar comes from Nord Security, the company behind NordVPN. It has gained ground quickly, with strong session coverage and good machine context. It is a relatively new entrant, so buyers should weigh its fast development pace against a shorter track record.
10. KELA
KELA specializes in cybercrime intelligence gathered from underground forums and marketplaces. Its infostealer coverage benefits from that vantage point, and session tracking is solid. Machine context and API depth are moderate compared with the vendors ranked above it.
What Buyers Should Take Away
No single vendor wins on every measure. Teams that want infostealer intelligence connected to wider threat monitoring will find Cyble, Flare, and SOCRadar worth a close look. Those focused on stopping account takeover should prioritize session capabilities, where SpyCloud, Constella, and NordStellar perform well. Engineering-heavy teams should put API quality near the top of their criteria, which favors Breachsense and Recorded Future.Whatever the shortlist, two capabilities deserve extra weight. The first is session coverage, because cookie theft is now a routine way to defeat MFA. The second is machine context, because knowing exactly which device was compromised determines how quickly a team can contain the damage. A trial run against a known set of exposed accounts remains the most reliable way to see how a vendor performs in practice.(Disclaimer: This article is based on third-party research and publicly available information, credited where applicable. The Cyber Express does not endorse any product or service mentioned. Readers are advised to verify information independently and consult qualified professionals before acting on it.)
The PNLD data breach has exposed contact information belonging to police officers, government partners, criminal justice professionals and customers after data from the Police National Legal Database (PNLD) was published on the dark web. The data breach at PNLD, identified on July 26, 2026, also affected some users of Ask the Police, raising concerns about targeted phishing attacks.
PNLD Data Breach Exposes Police and Contact Details
According to PNLD, the compromised data includes names, or
The PNLD data breach has exposed contact information belonging to police officers, government partners, criminal justice professionals and customers after data from the Police National Legal Database (PNLD) was published on the dark web. The data breach at PNLD, identified on July 26, 2026, also affected some users of Ask the Police, raising concerns about targeted phishing attacks.
PNLD Data Breach Exposes Police and Contact Details
According to PNLD, the compromised data includes names, organizations and work email addresses of police officers, police staff, criminal justice professionals, government partners and customers. The incident also exposed the names and email addresses of some individuals who had previously submitted questions through Ask the Police. UK government guidance warns that such information could enable attackers to craft more convincing phishing emails targeting named officers and affected individuals.In its official statement, PNLD said, "There is no evidence to suggest that passwords or other security credentials have been compromised." The organisation clarified that it provides legal information, products and services to UK police forces and criminal justice organisations. It also stressed that PNLD is not the Police National Computer or the Police National Database, is not a crime-recording system, and does not store confidential information relating to victims, witnesses or offenders.
PNLD Notifies Authorities and Affected Users
Following the PNLD data breach, the organization said it had contacted all affected organizations and provided additional guidance. Individuals impacted through Ask the Police have also received notification emails with further informationPNLD confirmed that it has informed the Information Commissioner's Office (ICO) and is working with the National Crime Agency (NCA) and specialist cybersecurity organizations as the investigation continues.Its statement noted: "We are continuing to investigate a data security incident affecting the Police National Legal Database (PNLD), which was identified on Sunday 26 July." It added that compromised information had been published on the dark web and reiterated that there is no evidence that passwords or other security credentials were accessed.Regarding Ask the Police, PNLD said the platform was affected because it is hosted on the same infrastructure, resulting in the publication of some users' names and email addresses.
Investigation Continues as Key Questions Remain
As of August 3, 2026, PNLD had not disclosed how many people were affected by the data breach at PNLD, when the intrusion began, how long unauthorized access lasted or the total volume of data obtained. Its public breach notice lists the categories of exposed information but does not include a victim count.PNLD's 2025-26 annual summary reported 108,429 police registrations and support for all 43 Home Office police forces. However, the organization emphasized that this figure represents its user base and should not be interpreted as the number of people affected by the breach.The organization's 2023-24 annual summary stated that PNLD uses Microsoft Power Platform technology. On August 3, 2026, The Hacker News reported that the breach notification page referenced assets hosted on Microsoft's content.powerapps.com domain. While this supports the platform connection, it does not indicate how the attackers accessed or extracted the compromised data.
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Firewall Daily – The Cyber Express
