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William Lonergan Hill

William Lonergan Hill

ID: cea1cdd6670f254fdb38e28be74f876b
Cybercrime Cybercriminal
Threat types: Crypto-mixing
Unknown
Updated: 2026-02-20
Created: 2026-02-18
Progress: 64% Completeness: 61% Freshness: 70%
Operation zone: —
Aliases Limited alias preview
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Actor Network Graph
Open Network Graph
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MITRE ATT&CK®
confidence: medium
Actor Techniques page ATT&CK® Diagram

Publicly identified co-founder/CTO of Samourai Wallet, a Bitcoin wallet and mixing service (Whirlpool) prosecuted in SDNY for unlicensed money transmitting and money laundering conspiracy.


Technique Technique name Tactics Evidence
T1583.006 Web Services TA0042
  • 2024-04-24 — Public reporting states Samourai's web servers and domain (samourai.io) were seized in coordination with authorities, indicating reliance on web services and domain infrastructure for operations. · ref
T1583.003 Virtual Private Server TA0042
  • 2024-04-24 — INFERENCE (confidence: medium): Operation of a consumer-facing wallet/mixing service implies backend hosting on server infrastructure that can be targeted for seizure/disruption; prosecutors explicitly reference 'web servers' seized. · ref
T1090 Proxy TA0011
  • 2024-04-24 — INFERENCE (confidence: medium): Mixing/CoinJoin functionality is designed to add indirection and hinder transaction provenance tracing, conceptually analogous to proxying/indirection in ATT&CK terms (not a direct network proxy claim). · ref
Strategic Intelligence
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Last updated: 2026-02-20T02:52:06+00:00

William Lonergan Hill — Samourai Wallet co-founder / crypto-mixing service operator (public case)

Classification: TLP: WHITE - Open Source Intelligence (OSINT)

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Executive Analyst Brief for CISO
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Executive Analyst Brief for CISO — William Lonergan Hill

Classification: Unclassified / Open Source Intelligence (OSINT) — TLP:WHITE

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Hunting Playbook
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Hunting Playbook — William Lonergan Hill (Illicit-Finance Enablement Cluster)


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IOC Appendix
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Last updated: 2026-02-20T02:53:37+00:00

IOC Appendix — William Lonergan Hill

Classification: Unclassified / Open Source Intelligence (OSINT) — TLP:WHITE

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OSINT Library
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Last saved: 2026-02-20T02:53:48+00:00

OSINT Library — William Lonergan Hill


2025-11-19 — U.S. DOJ (SDNY) — “Founders Of Samourai Wallet Cryptocurrency Mixing Service Sentenced To Five And Four Years In Prison”

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Social Medial & Communication
SOCMINT integrated: 0/0
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Reference Images/Associated Evidence Limited
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