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Threat actors
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8
techniques
0
software
9,577
corpus matches
profile
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.
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9,577 corpus matches is not attribution
That count is indicators which exhibit techniques Poseidon Group is known to use. Many unrelated operators use the same techniques. Treat it as a shared-technique signal for hunting, never as first-party attribution to this group.
indicators exhibiting these techniques
Top by severity: each resolves to its own verdict.
showing 30 of 9,577