Tracked as CVE-2026-19490, the authentication bypass flaw has been exploited in the wild since at least September 3.
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Widened Scan Turns Up Fourth Rogue Claude Cyber Incident
Anthropic is most concerned about Claude Mythos 5’s reckless behavior after recent incidents in which real systems were hacked.
The post Widened Scan Turns Up Fourth Rogue Claude Cyber Incident appeared first on SecurityWeek.
4.1 Million Impacted by AdaptHealth Data Breach
In June 2026, hackers stole personal, health, and insurance information from AdaptHealth’s systems.
The post 4.1 Million Impacted by AdaptHealth Data Breach appeared first on SecurityWeek.
Organizations Warned of Cisco Secure FMC Exploitation
Cisco and CISA have flagged exploitation of CVE-2026-20079, a vulnerability disclosed in March 2026.
The post Organizations Warned of Cisco Secure FMC Exploitation appeared first on SecurityWeek.
New ‘ShieldCrash’ Zero-Day Exploit Targets Microsoft Defender
The exploit provides full System privileges on Windows machines running the September 2026 patches.
The post New ‘ShieldCrash’ Zero-Day Exploit Targets Microsoft Defender appeared first on SecurityWeek.
Fortinet Code Execution Flaw Exploited in PivotC2 RAT Attacks
The high-severity, unauthenticated vulnerability tracked as CVE-2025-25249 was patched in January 2026.
The post Fortinet Code Execution Flaw Exploited in PivotC2 RAT Attacks appeared first on SecurityWeek.
Fortinet Patches Critical Vulnerabilities in FortiMonitorOnSight, Chrome Extension
The critical, unauthenticated bugs allow attackers to bypass authentication and proxy a user’s browser traffic.
The post Fortinet Patches Critical Vulnerabilities in FortiMonitorOnSight, Chrome Extension appeared first on SecurityWeek.
US Agencies Warn China Is Systematically Extracting Frontier AI Capabilities
Distillation is an ‘attack’ against an AI model designed to capture outputs, understand reasoning processes, and subsequently train a different model.
The post US Agencies Warn China Is Systematically Extracting Frontier AI Capabilities appeared first on SecurityWeek.
Meta Launches Personal AI Agent, Muse, Emphasizes Safety and Privacy
Muse runs on a dedicated, secure virtual machine that houses both the agent and the user’s data.
The post Meta Launches Personal AI Agent, Muse, Emphasizes Safety and Privacy appeared first on SecurityWeek.
ICS Patch Tuesday: Schneider Electric, Siemens Fix Critical Flaws
AVEVA and Rockwell Automation also released patches for vulnerabilities affecting industrial control system products.
The post ICS Patch Tuesday: Schneider Electric, Siemens Fix Critical Flaws appeared first on SecurityWeek.
