Outsiders suggested REvil was the target of the police said, which involved the FBI.

Aleksei Burkov is headed home some 14 months after a U.S. court sentenced him to nine years in prison.

Civil rights groups say the shotage at the Privacy and Civil Liberties Oversight Board is leaving surveillance abuses unchecked.

The prosecutions come amid growing attention from the U.S. government on the financial systems used by cybercriminals.

But they say Congress should hold the brakes on banning ransomware payments.

The campaign compromised at least 13 companies.