Also tracked as SEABORGIUM, Callisto Group, TA446, COLDRIVER
Star Blizzard is a cyber espionage and influence group originating in Russia that has been active since at least 2019. Star Blizzard campaigns align closely with Russian state interests and have included persistent phishing and credential theft against academic, defense, government, NGO, and think tank organizations in NATO countries, particularly the US and the UK.
Derived from MITRE ATT&CK's own description text for this group — not a confirmed, exhaustive targeting assessment.
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Surfaced when a technique used by this actor maps to a tracked CISA KEV entry.
Derived from MITRE's own published description text, never asserted beyond it.
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