Cybersecurity • Published August 11, 2026 • Source: Krebs on Security

Microsoft Plugs Nearly 400 Security Holes

Microsoft today released updates to remedy at least 398 security vulnerabilities in its Windows operating systems and supported software, including one weakness that is already being actively exploited and two others that were publicly detailed prior to today.

Microsoft Plugs Nearly 400 Security Holes
Image credit: Krebs on Security

Executive Summary & Key Takeaways

Microsoft today released updates to remedy at least 398 security vulnerabilities in its Windows operating systems and supported software, including one weakness that is already being actively exploited and two others that were publicly detailed prior to today.

Developer & Industry Context

As technology rapidly advances, key updates in Cybersecurity directly impact developer workflows, open-source ecosystems, and IT security standards. Read the full original report directly on the publisher website below.