Last Updated: April 20, 2026
Last Updated: April 20, 2026
Roman SEMENOV
Aliases
ROMA
POMA
Nationality
Russia
DoB
1987-11-08
Address
Dubai, United Arab Emirates
Reg. ID
731969851, Passport
Official reason
Today, the U.S. Department of the Treasury’s Office of Foreign Assets Control (OFAC) sanctioned Roman Semenov, one of three co-founders of the sanctioned virtual currency mixer Tornado Cash, for his role in providing material support to Tornado Cash and to the Lazarus Group, a state-sponsored hacking group that is an instrumentality of the Democratic People’s Republic of Korea (DPRK or North Korea). Tornado Cash has been used to launder funds for criminal actors since its creation in 2019, including to obfuscate hundreds of millions of dollars in virtual currency stolen by Lazarus Group hackers. This sanctions designation was conducted in coordination with the U.S. Department of Justice (DOJ), which unsealed an indictment against Semenov and a second co-founder of Tornado Cash, Roman Storm, who was arrested today by the Federal Bureau of Investigation and the Internal Revenue Service, Criminal Investigation. The DOJ charged Semenov and Storm with conspiracy to commit money laundering, conspiracy to operate an unlicensed money transmitting business, and conspiracy to commit sanctions violations. A third co-founder of Tornado Cash, Alexey Pertsev, was arrested on related money laundering charges in the Netherlands in August 2022 by Dutch law enforcement authorities. Roman Semenov (Semenov), a citizen of Russia, co-founded Tornado Cash as a mixing service to increase the anonymity of users’ transactions. Semenov was actively involved in promoting Tornado Cash in media and on online platforms, where he provided Tornado Cash users with advice to anonymize their transactions. After Semenov was alerted that Tornado Cash was being used to launder large volumes of stolen virtual currency for the Lazarus Group, he and his fellow co-founders continued to pay for infrastructure supporting the Tornado Cash service and took steps to increase the anonymity of the Tornado Cash service without appropriate measures to address the known illicit use by the DPRK. In April 2022, Semenov learned that an Ethereum address that was publicly attributed to the Lazarus Group and identified on the Specially Designated Nationals and Blocked Persons List (SDN List), containing hundreds of millions of dollars in stolen proceeds from the widely publicized $620 million Ronin bridge heist, was being used to send funds through Tornado Cash’s service. Semenov and his fellow co-founders put in place a front-end sanctions screening service, but did so knowing that this would be easy to evade, and did not take steps to sufficiently address active abuse by the DPRK. Despite his possession of information from publicly available blockchain analysis and inquiries from media, Semenov consistently ignored or downplayed the evidence that Tornado Cash was being used to launder stolen virtual currency for the DPRK, continued to participate in the operation and maintenance of the Tornado Cash service, and took no meaningful actions to prevent or mitigate the risk of actors using Tornado Cash to launder proceeds from their illicit activities following subsequent high profile heists. OFAC sanctioned the Lazarus Group on September 13, 2019, pursuant to Executive Order (E.O.) 13722, and identified it as an agency, instrumentality, or controlled entity of the Government of North Korea. The Lazarus Group has operated for more than 10 years and is believed to have stolen over $2 billion worth of digital assets across multiple thefts. Due to the pressure of robust U.S. and United Nations sanctions, the DPRK has resorted to using illicit tactics, such as cyber-enabled heists perpetrated by the Lazarus Group, to generate revenue for its unlawful weapons of mass destruction and ballistic missile programs. Semenov is being designated pursuant to E.O. 13694, as amended by E.O. 13757, for having materially assisted, sponsored, or provided financial, material, or technological support for, or goods or services to or in support of, any activity described in subsections (a)(ii) or (a)(iii)(A) of E.O. 13694, as amended, or any person whose property and interests in property are blocked pursuant to E.O. 13694, as amended; and pursuant to E.O. 13722 for having materially assisted, sponsored, or provided financial, material, or technological support for, or goods or services to or in support of, the Government of North Korea, a person whose property and interests in property are blocked pursuant to E.O. 13722.
Other Information
Date of listing
2023-08-23
Program information
Authority
US
Program
Executive Order 13722 of March 15, 2016 Blocking Property of the Government of North Korea and the Workers’ Party of Korea, and Prohibiting Certain Transactions With Respect to North Korea
Regime
OFAC country specific / UN
Target State
Democratic People's Republic of Korea
Measures
Blocking Property, Suspending Entry, Trade sanctions
Sanctions Portfolio
• https://ofac.treasury.gov/faqs/topic/1556 460. Can U.S. persons do business with entities in North Korea? No. Unless authorized pursuant to a general or specific license from OFAC and/or BIS, Executive Order (E.O.) 13722 prohibits new investment in North Korea by a U.S. person and the exportation or reexportation, from the United States, or by a U.S. person, of any goods, services, or technology to North Korea. E.O. 13810 (“Imposing Additional Sanctions with Respect to North Korea”) does not modify any of those prohibitions.
Official Information
On March 15, 2016, the President issued E.O. 13722 pursuant to, inter alia, IEEPA, the NEA, the UNPA, and the North Korea Sanctions and Policy Enhancement Act of 2016 (22 U.S.C. § 9201 et seq.) (the NKSPEA), to take additional steps to address the national emergency declared in E.O. 13466 and expanded in E.O. 13551, in light of further North Korean nuclear and ballistic missile tests. E.O. 13722 was issued to ensure implementation of certain provisions of UNSCR 2270 of March 2, 2016 and the NKSPEA; it strengthened export and other trade restrictions against North Korea; and imposed a comprehensive blocking of the Government of North Korea and the Workers’ Party of Korea.
Additional Details
SDN
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