The US Treasury listed, on 16th May, Matveev under its sanctions list relating to cyberattacks on its critical infrastructure. Additionally, the U.S. Department of State announced an award of up to USD10 million for information that leads to the arrest and/or conviction of Matveev under its Transnational Organised Crime Rewards Programme.

Russia is a haven for ransomware actors, enabling cybercriminals like Matveev to engage openly in ransomware attacks against U.S. organizations, says the Treasury.

The Treasury is satisfied that Matveev is a key player "in the Russian Ransomware Ecosystem" and has been "
a central figure in the development and deployment of the Hive, LockBit, and Babuk ransomware variants, among others. In 2021, Babuk ransomware affiliates attacked the police department of a major U.S. city. The hackers who infiltrated the police department’s computer network stole the home addresses, cellphone numbers, financial data, medical histories, and other personal details of police officers, along with sensitive information about gangs, suspects of crimes, and witnesses. In a public interview, Matveev claimed responsibility for posting the police department’s stolen data online." and "vocal about his illegal activities. He has provided insight into his cybercrimes in media interviews, disclosed exploit code to online criminals, and stated that his illicit activities will be tolerated by local authorities provided that he remains loyal to Russia."

The effect of the sanctions are explained by the Treasury as "As a result of today’s action, all property and interests in property of the designated individual that are in the United States or in the possession or control of U.S. persons must be blocked and reported to OFAC. OFAC’s regulations generally prohibit all dealings by U.S. persons or within the United States (including transactions transiting the United States) that involve any property or interests in property of blocked or designated persons.

"In addition, persons that engage in certain transactions with the individual designated today may themselves be exposed to designation."

This is the data relating to the entry. NB. Before using this data, you should ensure that it has not been updated or revoked.

MATVEEV, Mikhail Pavlovich (a.k.a. MATVEEV, Mihail Pavlovich; a.k.a. MATVEYEV, Mikhail P; a.k.a. "BORISELCIN"; a.k.a. "M1X"; a.k.a. "MATVEYEV, Mikhail Mix" (Cyrillic: "МАТВЕЕВ, Михаил Mix"); a.k.a. "MATYEEV, Mikhail" (Cyrillic: "МАТВЕЕВ, Михаил"); a.k.a. "UHODIRANSOMWAR"; a.k.a. "WAZAWAKA"), 8 Serzhana Koloskova Street, Apartment 6, Kaliningrad, Russia; DOB 17 Aug 1992; nationality Russia; Gender Male; Secondary sanctions risk: Ukraine-/Russia-Related Sanctions Regulations, 31 CFR 589.201; Passport 733584513 (Russia) (individual) [CYBER2].