A Russian man the U.S. federal government says has been a key actor in Russian ransomware hacking faces indictment in two American jurisdictions, economic sanctions and a $10 million reward for information leading to his arrest.

The man, Mikhail Matveev, 31, aka Wazawaka, was a central figure of the Babuk ransomware-as-a-service gang. Babuk became inactive shortly after hacking in 2021 the Washington, D.C. Metropolitan Police Department, demanding $4 million in extortion and subsequently dumping what the group said was 250 gigabytes of law enforcement data. A Washington grand jury indicted Matveev on two felony charges connected with the incident.