ArsTechnica is reporting on a “new” attack against RSA, one that bypasses factoring.
First, this attack isn’t new. The original research is from 2007. What is new is the implementation.
Second, it is a forgery attack. It allows an attacker to forge digital signatures. It does not recover the private key from the public key.
Third, the attack only works against pure signatures. That is, signatures without any formatting or padding. This is not generally how we use RSA in practice.
Fourth, speed is all relative. This is not a polynomial-time algorithm; it’s a subexponential-time algorithm. But it is somewhat faster than factoring. The authors were able to forge messages for 1024-bit RSA with 1380 CPU core-years (over five real-world months).
The authors have a webpage that explains the context much better than the article. And here’s the paper.
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This blog is perhaps a little bit more like an ad, so if you don’t want to check the ads, consider not reading it.
a very cyber image (Gemini)
But this year at RSA 2026, I’m speaking on three topics: securing AI, using AI for SOC, and sharing lessons about how Google applies AI and other technologies to D&R.
Here are these 3 fun things!
First, I’m doing a presentation on governing shadow AI agents. Believe it or not, this presentation was created mostly before OpenClaw became a thing (but updated for it!). So you may be surprised how well the content aged (think wine!) Attend this if you are struggling with shadow AI, specifically shadow agents at work.
It is not the APT! The new threat is the “shadow AI agents” employees already use for work, leaking data and making decisions. Banning them is a losing game. This session will offer a better way: turn this organic behavior into a catalyst for secure progress. Learn to discover, assess, and channel unsanctioned agents into a formal strategy that empowers a team rather than force it underground.
The second is probably the most detailed discussion about how we use AI for detection and response at Google. You probably read our blogs and listen to our talks (especially this), but this time we are revealing a lot more interesting details about the machinery and also how we arrived at the state we’re in. I promise you this will be fun! And detailed too.
Presenters will share the playbook for building and scaling AI agents in cybersecurity. Attendees will learn four core lessons: Building trust with the team, prioritizing real problems, measuring value, and establishing solid governance foundations for the agentic SOC.
Finally, the third isn’t a presentation but a discussion that would help you understand the real state of AI in security operations / SOC. This would not be about the slides, but about sharing lessons on what works and what doesn’t.
Attendees in this peer-led discussion will share stories from the AI-powered SOC trenches. Explore real adoption journeys from manual processes to autonomous agents. Share practical use cases on analyst retraining, workflow auditing, malware analysis, remediation automation, RAG pipelines and more. Trade notes on what’s working, what’s breaking, trust gaps, AI hallucinations, and career redesign.
All in all, join me for securing AI and Shadow Agents, learning from Google about detection and response, and comparing the state of practice of AI in the SOC.
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