Microsoft Defender Antivirus — Cyber Threats, Attacks & Incidents

Threat entity extracted from intelligence sources

Frequency
3
occurrences
First Seen
March 30, 2026
Last Seen
August 13, 2026

Related Threat Clusters

Recent Intelligence Reports

  • BlueHammer — www.cyderes.com · August 13, 2026
  • Picus Security: BlueHammer & RedSun — www.picussecurity.com · May 21, 2026
  • Still on Windows 10? Do This Now to Reduce Your Risk of Getting Hacked — Au.Pcmag · March 30, 2026

CVSS v3.1 Breakdown