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IRS Criminal Investigation

Criminal Investigation division of the IRS

Internal Revenue Service, Criminal Investigation (IRS-CI) is the United States federal law enforcement agency responsible for investigating potential criminal violations of the U.S. Internal Revenue Code and related financial crimes, such as money laundering, currency transaction violations, tax-related identity theft fraud and…

Description sourced from

  • WikipediaOct 13, 2026

    “Internal Revenue Service, Criminal Investigation (IRS-CI) is the United States federal law enforcement agency responsible for investigating potential criminal violations of the U.S. Internal Revenue Code and related financial crimes, such as money…”

Named in 3 pieces

  1. Security & Incident Response

    Kim Nilsson Traces Mt. Gox's Missing Bitcoin to BTC-e

    WizSec's Kim Nilsson traced stolen Mt. Gox bitcoin to BTC-e and named Alexander Vinnik his chief suspect the day Vinnik's arrest broke.

    Jul 26, 2017
  2. Security & Incident Response

    Tigran Gambaryan Seizes 69,370 Bitcoin, Then Nigeria Seizes Him

    IRS agent Tigran Gambaryan traced corrupt agents, BTC-e and Welcome to Video, then spent eight months held in Nigeria as a Binance executive.

    Nov 5, 2020
  3. Security & Incident Response

    Sarah Meiklejohn Follows a Fistful of Bitcoins

    Sarah Meiklejohn's 2013 paper used 344 test payments to put names on 1.8 million Bitcoin addresses, and tracing firms now run variants of it.

    Sep 2, 2013

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