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ROMAN SEMENOV - Case Investigation | CrimeOwl AI
United States (financial system/sanctions enforcement)

The person at the center of this case

United States (financial system/sanctions enforcement)

Case
#852
SourceFBI WantedUpdated Mar 15, 2026
United States District Court, Southern District of New York; Federal Bureau of Investigation
Cold Case ยท Open
2 years waiting ยท since 2023

ROMAN SEMENOV

Justice for United States (financial system/sanctions enforcement) โ€” the trail went cold in 2023, but the truth hasn't.

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Key leads to think about

๐ŸŽฏ
suspect
Lead #1

Where is Roman Semenov currently located and what is his current status?

๐Ÿ”
evidence
Lead #2

What specific technical infrastructure did Semenov create or maintain for Tornado Cash's anonymity features?

๐Ÿ‘ค
person
Lead #3

Who are the identified co-conspirators in the Tornado Cash operation and have they been apprehended?

Roman Semenov is wanted by the FBI for his alleged role as a founder of Tornado Cash, a cryptocurrency mixer service that facilitated over $1 billion in money laundering. Between April and May 2022, the service was allegedly used by North Korean cybercriminals (Lazarus Group) to launder hundreds of millions in hacking proceeds, with Semenov's knowledge and continued operation. A federal arrest warrant was issued in August 2023 for conspiracy to commit money laundering, operating an unlicensed money transmitting business, and violating international sanctions.

Case
#852
SourceFBI WantedUpdated Mar 15, 2026
United States District Court, Southern District of New York; Federal Bureau of Investigation

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More leads to consider

Beyond the top three above โ€” each detail below could be the thread that pulls this case open.

๐Ÿ’ก
clue
Lead #4

What financial records or blockchain transactions can definitively link Semenov to the Lazarus Group laundering operations?

๐Ÿ“
location
Lead #5

What are Semenov's known associates and safe houses in Turkey, Dubai, and Moscow?

Have information about any of these leads?

Even the smallest detail could be the key to solving this case.

Official wording

Source Narrative

Conspiracy to Commit Money Laundering; Conspiracy to Operate an Unlicensed Money Transmitting Business; Conspiracy to Violate the International Emergency Economic Powers Act Roman Semenov is wanted for his alleged involvement in criminal activities regarding conspiracy to commit: money laundering, sanctions violations, and money service business violations. Semenov is allegedly one of the founders of the Tornado Cash service, a cryptocurrency mixer that allowed its customers to engage in untraceable transfers of cryptocurrency.

Semenov and his co-conspirators allegedly created the core features of the Tornado Cash service, paid for critical infrastructure to operate the service, promoted the service, and made millions of dollars in profits from operating the service. The Tornado Cash service was ultimately used to launder more than $1 billion in criminal proceeds.

In April and May of 2022, the Tornado Cash service was allegedly used by the Lazarus Group, a sanctioned North Korean cybercrime organization, to launder hundreds of millions of dollars in hacking proceeds. Semenov and his co-conspirators allegedly knew that the Tornado Cash service they were operating was engaging in these sanctions-violating transactions.

They allegedly continued to operate the Tornado Cash service and facilitate hundreds of millions of dollars in further sanctions-violating transactions, helping the Lazarus Group to transfer criminal proceeds from a cryptocurrency wallet that had been designated by the Office of Foreign Assets Control as blocked property. A federal arrest warrant was issued by the United States District Court, Southern District of New York, New York, New York, on August 21, 2023, after Semenov was charged federally with Conspiracy to Commit Money Laundering; Conspiracy to Operate an Unlicensed Money Transmitting Business; and Conspiracy to Violate the International Emergency Economic Powers Act.

Remarks: Semenov has ties to Turkey; Dubai, United Arab Emirates; and Moscow, Russia.

Timeline of Events

๐Ÿ“‹
2022-04-01

Lazarus Group begins using Tornado Cash

North Korean Lazarus Group allegedly begins using Tornado Cash service to launder hundreds of millions in hacking proceeds

๐Ÿ“‹
2022-05-31

Continued sanctions violations

Semenov and co-conspirators allegedly continue operating Tornado Cash while knowingly facilitating Lazarus Group transactions

๐Ÿ•ต๏ธ
2023-08-21

Federal arrest warrant issued

U.S. District Court, Southern District of New York issues arrest warrant for Semenov on charges of money laundering conspiracy, unlicensed money transmitting, and sanctions violations

Key Locations
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Case Information

Incident:April 1, 2022
Last Updated:May 12, 2026

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Case Information

Incident:April 1, 2022
Last Updated:May 12, 2026