(16.8.2017) Profexer, whose real identity is unknown, wrote and sold malware on the dark web. The intelligence community publicly identified code he had written as a tool used in Russian state-sponsored hacking against networks associated with the U.S. election in addition to other government, political, and private entities in the United States.

The hacker’s activity on the web came to a halt shortly after the malware was identified.

The Times, citing Ukrainian police, reported Wednesday that the individual turned himself into the FBI earlier this year and became a witness for the bureau.