Security Bulletin

Medusa ransomware hit 500-plus victims, exploiting critical flaws at increasing speed.

A spear-phishing campaign by a Chinese-nexus group linked to FamousSparrow provides insight into geopolitical, technical, and strategic global moves by China's APTs.

M&A success depends on product fit, cultural alignment and disciplined post-deal execution.

The compromised LAN driver, hosted on a legacy support page, allowed the Asruex backdoor to operate with administrator-level permissions.

WMIC, a legacy command-line utility for interacting with Windows Management Instrumentation (WMI), has been progressively phased out.

The vulnerability, rated 9.4 under CVSS v4, was disclosed in November 2025 and allows attackers to exploit browsers like Firefox and Safari to achieve remote code execution (RCE) on a vulnerable Ray system.

CISA is currently acquiring these tools through the Continuous Diagnostics and Mitigation program and its Capacity Building arm.

The breach, which occurred on May 7, 2026, exposed the personal and financial information of potentially over 730,000 Texans, and affected individuals in Alabama, Tennessee, Georgia, and South Carolina.

The implant ensures defenders only see legit Microsoft services rather than unknown external domains, making it more challenging to block attacks.

In the first purported "near-autonomous" attack on a nation-state, a Chinese-language operator used a complex AI framework to target and compromise government agencies, likely in Taiwan.

As vulnerability discovery is industrialized, remediation must combine AI automation, environmental context and human expertise.