Poseidon Group is a Portuguese-speaking threat group that has been active since at least 2005. The group has a history of using information exfiltrated from victims to blackmail victim companies into contracting the Poseidon Group as a security firm.
Shown when this actor's known techniques match your monitored environment.
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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Match this actor's known techniques against the technologies you run inside Seraph CTI, and get notified if their profile changes.