Researchers identified what they believe is the first documented case of a ransomware operation, JadePuffer, conducted entirely by a large language model (LLM) agent. […]
U.S. Government Entity Paid Kairos $1 Million in Data-Theft Extortion Case
A U.S. government entity paid about $1 million to keep stolen files from being leaked, according to a new case study by Rakesh Krishnan for Ransom-ISAC, built on a leaked negotiation chat and the blockchain trail the payment left.
The odd part: the group that took the money calls itself Kairos, but it may not be a ransomware gang at all. Krishnan found no sign that it ever locked a single
North Korean Hackers Publish 108 Malicious Packages and Extensions in PolinRider Campaign
The North Korean threat actors linked to the Contagious Interview campaign have been observed publishing 108 unique packages and web browser extensions spanning npm, Packagist, Go, and Google Chrome as part of an ongoing activity referred to as PolinRider.
“The campaign remains active, and new malicious packages are likely to continue appearing as threat actors compromise maintainer accounts,
Unpatched Flaws Disclosed in Filesystem Bundled Into Millions of Embedded Devices
Security firm runZero has disclosed seven vulnerabilities in FatFs, a small filesystem library that lets a device read and write the FAT and exFAT formats used on USB drives and SD cards.
The flaws matter because FatFs is nearly everywhere. It ships inside the firmware that runs security cameras, drones, industrial controllers, hardware crypto wallets, and other devices built on
New “Bad Epoll” Linux Kernel Flaw Lets Unprivileged Users Gain Root, Hits Android
A newly disclosed Linux kernel flaw called Bad Epoll (CVE-2026-46242) lets an ordinary user with no special access take full control of a machine as root. It affects Linux desktops, servers, and Android, and a fix is out.
Bad Epoll sits in the same small stretch of kernel code where Anthropic’s most powerful AI model, Mythos, recently found a different bug.
The AI caught one flaw and missed
New Avalon Malware Framework Packs CrownX Ransomware Capabilities
Cybersecurity researchers have discovered a previously undocumented modular malware framework codenamed Avalon that’s distributed by means of a multi-stage phishing chain capable of bypassing traditional security controls.
Avalon combines credential collection, lateral movement, remote access, recovery disruption, and ransomware execution, bringing together diverse functions under one
NetNut proxy network disrupted, 2 million infected devices cut off
A joint operation involving Google has disrupted NetNut, a residential proxy network that gave access to millions of compromised Android devices, including smart TVs and streaming boxes. […]
North Korea-Linked npm Packages Mimic Rollup Polyfills to Steal Developer Secrets
Threat actors with ties to North Korea have been linked to a fresh set of malicious npm packages that masquerade as Rollup polyfill tooling to facilitate remote access and data theft.
According to JFrog, the packages “rollup-packages-polyfill-core” and “rollup-runtime-polyfill-core” mimic the legitimate “rollup-plugin-polyfill-node” project, down to the description, repository metadata, and
In Other News: Canadian Hacker Jailed, Open Source Zero-Days, Two Sentenced for ATM Jackpotting
Noteworthy stories that might have slipped under the radar: Anonymous-linked Canadian hacker jailed, researcher drops zero-days in open source projects, Venezuelans sentenced in the US over ATM jackpotting.
The post In Other News: Canadian Hacker Jailed, Open Source Zero-Days, Two Sentenced for ATM Jackpotting appeared first on SecurityWeek.
ARToken PhaaS exposes EvilTokens’ Microsoft 365 phishing toolkit
A new phishing-as-a-service (PhaaS) platform dubbed “ARToken” appears to operate as an affiliate of the EvilTokens phishing platform, giving researchers a glimpse into an extensive toolkit designed to compromise Microsoft 365. […]