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Threat actor

UNC6671

Tracked by CyberSIXT since May 15, 2026 · last activity May 16, 2026

Coverage timeline

BlackFile vishing attack steals data from Microsoft 365 and Okta
databreaches.net · May 16, 2026
UNC6671’s BlackFile Uses Vishing and AiTM to Bypass MFA
cloud.google.com · May 15, 2026