Phineas Fisher
Attribution profile
- Type
- Activist
- Location
- United States of America
- Known incidents
- 4 incidents
- Sources
- 5 sources
- First seen
- 2014-08-02
- Last seen
- 2016-05-20
- Updated
- 2026-10-04 00:38
- Aliases
- 1 alias
STIX characteristics
Threat actor characteristics are available to members.
Profile narrative
Phineas Fisher, also known as Phineas Fisher, is a hacker linked to the United States who has claimed responsibility for intrusions into law‑enforcement, financial, and surveillance sectors. The actor has defaced websites, compromised web servers, hijacked social‑media accounts, exfiltrated data, leaked stolen material via Distributed Denial of Secrets, and published tutorial videos to encourage similar hacks. Public statements describe the activity as politically motivated activism aimed at fighting economic inequality and opposing perceived misconduct by authorities, with the actor denying personal profit. Notable operations include a breach of a Catalan police union, an offshore bank in the Isle of Man, a mobile‑forensics company (Cellebrite), and surveillance‑technology firms such as Hacking Team and Gamma Group’s FinFisher suite. No public attribution to a state sponsor or criminal consortium has been made.
Incidents
Attributed incidents are available to members.
4 incidentsSources
Sources available to members: 5 sources.