Security news from around the web with our take: what happened, what it means for you, and what defenders should do. We link every original story.
28 stories match your filters.
A fake Claude Code 2.1.313 on Cursor's extension marketplace added an attacker SSH key, persistence and a reverse tunnel on up to 5,000 developer machines on Oct. 29. Update to 2.1.314 and check for the 'svc-telemetry' key.
CloudSEK says the Doorway botnet compromised 11,363 routers, cameras and servers in a month, mostly via blank or default passwords on MikroTik routers plus old RouterOS and Openfire bugs.
Huntress says attackers trick staff into enrolling PCs in attacker-run Hexnode and Rippling device-management tenants, then use them to install ScreenConnect as SYSTEM, and reinstall it when removed.
Kaspersky says an unknown group used NetamLoader, a near-fileless .NET loader that abuses a legitimate Patch My PC tool and hides in dllhost.exe, against a customized Windows 10 build used by governments in Asia.
Huntress tracked a campaign that replayed stolen Microsoft 365 sign-in tokens to take over 97 accounts at 79 organizations, then planted rogue Entra devices, swapped MFA methods and hid payroll mail.
Wiz says the Gheist campaign used stolen GitHub tokens to plant 13,500+ branches across 850+ accounts, each running a workflow that dumps repository secrets into Actions logs and deletes the run.
Arctic Wolf has seen more than 400 incidents where attackers mail-bomb a user, pose as IT on Microsoft Teams and get remote access via Quick Assist, a path to Black Basta, Cactus and Chaos ransomware.
Sansec found a JavaScript loader in Magento CMS blocks on 953 stores since July 2025; the newest version fingerprints visitors so scanners see nothing, and PolyShell is the main way in.
Check Point's Yoba campaign pairs genuine signed OpenAI and Anthropic installers with a sideloaded DLL on fake GitHub AI-app pages, installing a hidden XMRig miner via a Telegram-seeded DGA.
Acronis TRU dissects Qilin's Rust encryptor, its password gate and the PowerShell routine that resets ESXi root passwords and encrypts every host, as the gang passes 900 claimed victims in 2026.
ANY.RUN tracked the SkyW4lker kit across 173 domains: password-protected lures send Microsoft 365 users to the real device login page, where one typed code hands the attacker a token.
Group-IB tracked seven Android trojan families behind fake bank 'protection plan' calls in India: nearly 18,000 phones infected and 7.6 million texts, including OTPs, intercepted.
Sansec says a Brazilian Magecart group planted a card skimmer in the Plausible analytics script every Convertr store loads, exposing checkouts at dozens of fashion brands Oct. 24 to 27.
Ransom-ISAC's analysis of leaked Silent Ransom Group files shows callback-phishing extortion of mostly US law firms via AnyDesk, with at least $43.95 million confirmed received.
Group-IB and NyxLab say actor k0t exploited exposed FortiWeb, FortiGate and GlobalProtect devices through 2026, reached domain admin, and stole more than 70,000 credentials, likely as an initial access broker.
Imperva ran attacker code on an official Node.js 24.22.0 image by feeding it crafted Brotli data, through fetch() responses or Express 5 body parsers. Patch Node.js and rebuild images.
Kaspersky found BlackX, a UEFI bootkit used against Central Asian diplomats that bypasses Secure Boot via Baton Drop because Microsoft's revocation step was never applied. Medium-confidence link to APT41.
Wiz says ARTEX AI agents tied to Storm-0940 spent October probing IT and software vendors' Okta, Entra ID and Cognito sign-ins. Most attempts failed.
Eye Security found Time4Popcorn's abandoned updater would run any file as SYSTEM or root, registered its domain and used it to switch the updater off. Android users remain exposed.
LiteLLM says a master key leaked on GitHub in May and never revoked let an attacker steal maintainer tokens and ship a backdoored 1.107.0 to PyPI, Docker Hub and GHCR.
A joint FBI, CISA and USSS advisory says SafePay ransomware has hit at least 600 victims since August 2024, getting in through stolen or guessed VPN logins and old Cisco ASA, SonicWall and Veeam flaws, then wiping backups before it encrypts.
Kaspersky says Lazarus abused South Korea's mandatory INISAFE CrossWeb EX security plug-in to break into at least three firms, using fake résumé sites, GitHub-based C2 and a post-quantum key exchange.
Hunt.io found the PaperCut mass-exploitation crew's AI agent prompts, exploit variants, credential stealers and victim access kits on an open server, plus a second RCE route through the XML-RPC API.
An attacker used a hijacked developer account to swap the binaries on five OVHcloud CLI releases for a build that steals cloud keys, SSH keys and AI-tool data. OVHcloud ties it to GlassWorm and says about 250 downloads happened in the 94-minute window.
Rank Math PRO 3.0.123, served from the vendor's own site for about 11 hours on Oct. 15-16, carried a backdoor that creates hidden admins and rebuilds itself. Updating alone doesn't clean it.