Russian security services helped private Russian hackers attack Yahoo in 2014 and compromise 500 million user accounts, indictments filed in the United States suggest.
Reuters reported that four people were indicted on Wednesday, two of whom were officers of Russia’s Federal Security Service – the FSB.
According to the report, US officials stated this is the clearest indication yet that the Kremlin uses criminal hackers.
Reuters reported that one of the FSB agents, Dmitry Dokuchaev, was arrested by Russian authorities in December and charged with treason.
Dokuchaev is charged with acting as a handler for Karim Baratov, a hacker he tasked with breaking into email accounts on other systems using the Yahoo data. Dokuchaev allegedly paid Baratov a bounty when he succeeded.
Baratov is in custody in Canada. Dokuchaev remains in Russia.