Apt29
Microsoft Investigates Midnight Blizzard Email Breach
Threat actors associated with Midnight Blizzard accessed Microsoft corporate email accounts after compromising authentication credentials in a targeted espionage operation.
APT29 (Cozy Bear / NOBELIUM) — Espionage-Focused Threat Actor Profile
APT29 (also tracked as Cozy Bear and NOBELIUM) is a widely reported espionage-focused threat actor associated with long-term, stealthy intrusion campaigns. This SECMONS profile summarizes publicly documented targeting patterns, techniques, and defensive implications.