Locking it down: A new technique to prevent LLM jailbreaks

Enterprise-grade Juniper Networks routers have become the target of a custom backdoor as part of a campaign dubbed J-magic. According to the Black Lotus Labs team at Lumen Technologies, the activity is so named for the fact that the backdoor continuously monitors for a “magic packet” sent by the threat actor in TCP traffic.  “J-magic…

Security experts have been talking about Kerberoasting for over a decade, yet this attack continues to evade typical defense methods. Why? It’s because existing detections rely on brittle heuristics and static rules, which don’t hold up for detecting potential attack patterns in highly variable Kerberos traffic. They frequently generate false positives or miss “low-and-slow” attacks…

Can a harmless click really lead to a full-blown cyberattack? Surprisingly, yes — and that’s exactly what we saw in last week’s activity. Hackers are getting better at hiding inside everyday actions: opening a file, running a project, or logging in like normal. No loud alerts. No obvious red flags. Just quiet entry through small…

Caleb Skeath, Micaela McMurrough, Alexandra Bruer, and Bryan Ramirez of Covington and Burling write: On December 16, 2025, the U.S. National Institute of Standards and Technology (“NIST”) published a preliminary draft of the Cybersecurity Framework Profile for Artificial Intelligence (“Cyber AI Profile” or “Profile”).  According to the draft, the Cyber AI Profile is intended to “provide guidelines……

Matt Burgess and Lily Hay Newman report: The possibility that data could be inadvertently exposed in a misconfigured or otherwise unsecured database is a longtime privacy nightmare that has been difficult to fully address. But the new discovery of a massive trove of 184 million records—including Apple, Facebook, and Google logins and credentials for accounts connected to multiple governments—underscores the risks…

A recent analysis of enterprise data suggests that generative AI tools developed in China are being used extensively by employees in the US and UK, often without oversight or approval from security teams. The study, conducted by Harmonic Security, also identifies hundreds of instances in which sensitive data was uploaded to platforms hosted in China,…