Sean Lyngaas reports:
As Russian artillery began raining down on his homeland last month, one Ukrainian computer researcher decided to fight back the best way he knew how — by sabotaging one of the most formidable ransomware gangs in Russia.
Four days into Russia’s invasion, the researcher began publishing the biggest leak ever of files and data from Conti, a syndicate of Russian and Eastern Europe cybercriminals wanted by the FBI for conducting attacks on hundreds of US organizations and causing millions of dollars in losses.
Read more at CNN.