66 days ago
Microsoft Plugs Nearly 400 Security Holes
What's happening
SignalsMonitor is following this as a security story. Krebs on Security is the outlet attached so far. The first report grouped here was at 11 Aug 2026, 21:28 UTC. 2 material updates are listed in the timeline. The headline in use is “Microsoft Plugs Nearly 400 Security Holes”. This note is SignalsMonitor's own briefing, not the publisher's article.
What we know
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. Image: Shutterstock, Mallika Home Studio.
Story timeline
Reports grouped into this story, earliest first. Exact repeats from the same outlet are collapsed.
- First reported by Krebs on Security
- Picked up by Krebs on Security
Reported by 1 outlet
- Krebs on Security
- Krebs on SecurityMicrosoft Plugs Nearly 400 Security Holes