Poseidon Group
Essential information
- Confidence
- 100/100
- Published
- 16/12/2025 19:39
- Modified
- 27/03/2026 01:14
- Updated at
- 27/03/2026 01:14
- Revoked
- No
- Author / Source
- The MITRE Corporation
- Resource level
- —
- Primary motivation
- —
- Related entities
- 8 attack patterns (mitre)
Description
[Poseidon Group](https://attack.mitre.org/groups/G0033) 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](https://attack.mitre.org/groups/G0033) as a security firm. (Citation: Kaspersky Poseidon Group)
Marking (TLP)
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