New Windows Defender zero-day blocks Microsoft antivirus updates
Over the weekend, security researcher Abdelhamid Naceri (also known as Nightmare Eclipse) released another Microsoft Defender zero-day exploit that blocks antivirus updates. [...]
Security
CISA orders feds to patch Zyxel flaw exploited for data theft
Attackers are now actively exploiting a high-severity vulnerability in Zyxel GS1900 series switches, according to the U.S. Cybersecurity and Infrastructure Security Agency (CISA). [...]
BigCommerce alerts merchants of data breach linked to Ribon apps
Ecommerce platform BigCommerce has alerted multiple merchants to data breaches after attackers compromised credentials for third-party Ribon applications and used them to inject malicious scripts into online stores. [...]
CISA alerts of active exploitation of three Linux kernel flaws
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is warning that hackers are exploiting three Linux kernel vulnerabilities, one of them rated critical. [...]
WordPress Click2Shell flaw lets hackers execute PHP on the server
Technical details and a proof-of-concept exploit have been published for a new WordPress cross-site request forgery (CSRF) vulnerability dubbed 'Click2Shell' that affects the platform's Core component. [...]
Microsoft to retire Microsoft 365 Companion apps in December
Microsoft will retire the Calendar, People, and Files Microsoft 365 companion apps on December 16 and has asked admins to remove them from managed devices. [...]
Google fined €403 million over location data privacy violations
Ireland's Data Protection Commission (DPC) has fined Google €403 million ($463M) for multiple GDPR violations related to processing users' location data. [...]
Microsoft fixes broken Excel copy and paste for all Office users
Microsoft has fixed a known issue that causes copy-and-paste failures for Excel users after installing the September 2026 security updates. [...]
FBI's CJIS v6.1: What Security Teams Need to Know.
The FBI's CJIS Security Policy v6.1 strengthens requirements around encryption and vulnerability scanning while continuing the shift toward more continuous security assessment. Specops explains what changed and how agencies can address password, MFA, and identity requirements as they prepare for ...
Microsoft reminds admins to migrate Entra ID users to passkeys
Microsoft has reminded admins to migrate Entra ID users to phishing-resistant authentication methods to avoid sign-in disruptions after it retires SMS first-factor sign-in starting in February 2027. [...]
Microsoft: September updates break File History backup feature
Microsoft warned that the built-in File History backup feature in Windows may stop working on some systems after installing the September 2026 security updates. [...]
Malicious npm packages evade install-script defenses at runtime
An ongoing npm malware campaign involving the 'indexed-btree' package shows how threat actors bypass supply chain defenses by hiding malicious code in a package's normal runtime behavior rather than in installation scripts. [...]
Researchers escape OpenAI Codex sandbox to run commands on host
Researchers escaped OpenAI's Codex sandbox two ways, one running commands on a developer's machine from its most locked-down mode. OpenAI has patched both. [...]
BragJack attacks hijack AI browser agents through malicious extensions
BragJack, a proof-of-concept attack from Forever Security's Gal Weizman, hijacks the AI assistants in Chrome, Edge, Opera Neon, Perplexity Comet, and Claude in Chrome using one malicious extension. The Prompt Forcing technique earned over $20,000 in bounties and two CVEs. [...]
North Korean WaterPlum hackers infected 30,000 devices worldwide
A joint law enforcement advisory warns that the North Korean hacking group WaterPlum compromised at least 30,000 devices worldwide from December 2025 through July 2026 and transferred more than $10.7 million in stolen cryptocurrency to North Korea. [...]
ShinyHunters hacks Clop leak site, threatens to extort ransomware gang
The ShinyHunters extortion gang breached the Clop (aka Cl0p) ransomware operation's data leak site, defacing the Tor site and allegedly stealing server data and the private keys for its onion service. [...]
Viral AI actress' hotline face-scans every caller, watches their mood
AI actress Tilly Norwood went viral after glitching into Chinese on Piers Morgan Uncensored last night. Her "Talking Tilly" video call service face-scans every caller for an 18+ age check, senses callers' moods during calls, and shuts down permanently on September 27. We tried it and read the fin...
Calling viral AI actress Tilly Norwood? Agree to a face scan first
AI actress Tilly Norwood went viral after glitching into Chinese on Piers Morgan Uncensored last night. Her "Talking Tilly" video call service face-scans every caller for an 18+ age check, senses callers' moods during calls, and shuts down permanently on September 27. We tried it and read the fin...
Gyazo server flaw exploited to steal 23.6 million user records
The Gyazo image-sharing platform has confirmed it suffered a data breach after hackers exploited a server vulnerability that allowed them to steal 23.6 million user records. [...]
Fake LastPass Authenticator GitHub repos push new Rapuncel infostealer
An ongoing malware campaign uses SEO-optimized GitHub repositories to impersonate well-known software firms to push a previously undocumented information stealer called Rapuncel. [...]