# William Lonergan Hill

No alias recorded

Charged, Arrested, Pleaded guilty, Sentenced, Extradited

Public record reviewed to August 21, 2026

Index entry last updated August 21, 2026

Co-founder and CTO.

A conviction or guilty plea is recorded in this entry.

- Co-founder and CTO of Samourai Wallet.

Everything on this page comes from cited public sources.

This entry records 5 actions across 1 takedown, each traced to a cited source. At least one linked takedown was added in the extended pass and was not independently source verified. Where the record is silent, this page says so rather than filling the gap.

Legal summary

**Associated takedowns:** [Samourai Wallet seizure](https://takedownindex.org/takedowns/samourai-wallet-seizure)

**Recorded role:** Co-founder and CTO

**Group segment:** Core operator

**Charging authority:** United States Attorney's Office for the Southern District of New York

**Charging jurisdiction:** Not recorded

**Case number:** 1:24-cr-00082

**Latest recorded action:** Sentenced, November 2025

**Nationality:** United States

**Country of residence:** Not established

**Recorded sentence:** Four years imprisonment; three years supervised release; USD 250,000 fine.

- [Associated takedowns](https://takedownindex.org/people/william-lonergan-hill)
- [Legal history](https://takedownindex.org/people/william-lonergan-hill/legal-history)
- [Charges](https://takedownindex.org/people/william-lonergan-hill/charges)
- [Sources](https://takedownindex.org/people/william-lonergan-hill/sources)

## Associated takedowns

Law enforcement actions against infrastructure and services linked to this person, and the action recorded against the person in each one.

Outcomes and dates follow the public reporting cited on the sources tab and are subject to revision.

5 recorded actions across 1 takedown

| Date | Takedown | Target | Connection | Outcome |
| --- | --- | --- | --- | --- |
| April 24, 2024, [Source [1]](https://takedownindex.org/people/william-lonergan-hill/sources#source-1) | [Samourai Wallet seizure](https://takedownindex.org/takedowns/samourai-wallet-seizure), Cryptocurrency laundering | Samourai Wallet | Co-founder and CTO | Charged. No further detail published |
| April 24, 2024, [Source [1]](https://takedownindex.org/people/william-lonergan-hill/sources#source-1) | [Samourai Wallet seizure](https://takedownindex.org/takedowns/samourai-wallet-seizure), Cryptocurrency laundering | Samourai Wallet | Co-founder and CTO | Arrested. No further detail published |
| July 30, 2025, [Source [2]](https://takedownindex.org/people/william-lonergan-hill/sources#source-2) | [Samourai Wallet seizure](https://takedownindex.org/takedowns/samourai-wallet-seizure), Cryptocurrency laundering | Samourai Wallet | Co-founder and CTO | Pleaded guilty. No further detail published |
| November 19, 2025, [Source [3]](https://takedownindex.org/people/william-lonergan-hill/sources#source-3) | [Samourai Wallet seizure](https://takedownindex.org/takedowns/samourai-wallet-seizure), Cryptocurrency laundering | Samourai Wallet | Co-founder and CTO | Sentenced. No further detail published |
| Date not established, [Source [2]](https://takedownindex.org/people/william-lonergan-hill/sources#source-2) | [Samourai Wallet seizure](https://takedownindex.org/takedowns/samourai-wallet-seizure), Cryptocurrency laundering | Samourai Wallet | Co-founder and CTO | Extradited. Extradited from Portugal in July 2024; exact day not stated in the cited release. |