# 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)

## Sources

Every claim on this person's pages traces to one of the entries below.

Official announcements come first, then the reporting that supports individual details.

3 sources cited across 5 recorded actions

1. [1]
[Samourai Wallet founders arrested; infrastructure seized](https://takedownindex.org/sources/us-doj-usao-sdny-irs-ci-fbi-samourai-wallet-founders-arrested-infrastructure-sei)

US DOJ / USAO SDNY / IRS-CI / FBI, April 24, 2024 Prosecutor release Source grade P1

Establishes the arrest of Samourai Wallet's founders and the seizure of web servers (Iceland) and domain/app infrastructure (US).

[Open source](https://www.justice.gov/usao-sdny/pr/founders-and-ceo-cryptocurrency-mixing-service-arrested-and-charged-money-laundering)
2. [2]
[Founders of Samourai Wallet Cryptocurrency Mixing Service Plead Guilty](https://takedownindex.org/sources/united-states-attorney-s-office-southern-district-of-new-york-founders-of-samour)

United States Attorney's Office, Southern District of New York, August 6, 2025 Prosecutor release Source grade P1

July 30, 2025 guilty pleas, Hill extradition, agencies and forfeiture agreement

[Open source](https://www.justice.gov/usao-sdny/pr/founders-samourai-wallet-cryptocurrency-mixing-service-plead-guilty)
3. [3]
[Founders of Samourai Wallet Cryptocurrency Mixing Service Sentenced to Five and Four Years in Prison](https://takedownindex.org/sources/united-states-attorney-s-office-southern-district-of-new-york-founders-of-samo-2)

United States Attorney's Office, Southern District of New York, November 19, 2025 Prosecutor release Source grade P1

Rodriguez and Hill sentences, forfeiture, supervision and agency roles

[Open source](https://www.justice.gov/usao-sdny/pr/founders-samourai-wallet-cryptocurrency-mixing-service-sentenced-five-and-four-years)

Coverage note. Nothing on this page rests on an uncited claim. Where a source is silent on an outcome, this entry leaves the outcome unstated rather than inferring one. At least one linked takedown was added in the extended pass and was not independently source verified.