Windows 11 — Cyber Threats, Attacks & Incidents

Threat entity extracted from intelligence sources

Frequency
100
occurrences
First Seen
October 28, 2025
Last Seen
July 17, 2026

Windows 11 is a technology platform tracked across 50 threat clusters and 100 intelligence report mentions on ThreatCluster. First observed October 28, 2025; most recent activity July 17, 2026.

Related Threat Clusters

Recent Intelligence Reports

  • Extended Security Updates — www.microsoft.com · July 17, 2026
  • Elastic leads the latest AV-Comparatives Malware Protection Test with a perfect score — cts.businesswire.com · July 16, 2026
  • Microsoft Blocks Windows 11 Security Update on Dell PCs Over Intel Driver Causing Shutdowns and Battery Drain — Gbhackers · July 15, 2026
  • Notepad++ v8.9.7 Security Update Fixes 5 Vulnerabilities, Including Stack Buffer ... — Gbhackers · July 15, 2026
  • Google Workspace adds FIDO2 security keys and passkeys to Windows login — Feeds.4Sysops · July 14, 2026
  • Microsoft releases fix for RoguePlanet Defender flaw (CVE-2026-50656) — Feeds2.Feedburner · July 9, 2026
  • Microsoft patches RoguePlanet zero — Feeds.4Sysops · July 9, 2026
  • PoC Released for NTLM reflection bypass Vulnerability that Emanbles SYSTEM Access on ... — Gbhackers · June 30, 2026

CVSS v3.1 Breakdown