Censor.NET reports citing Reuters.
Wednesday's indictments in the United States of four people in a 2014 cyber attack on Yahoo Inc provides the clearest details yet on what some U.S. officials say is a symbiotic relationship between Moscow's security services and private Russian hackers.
The indictment charges two officers of the FSB, Russia's Federal Security Service, and two hackers who allegedly worked hand-in-hand with them to crack 500 million Yahoo user accounts.
U.S. authorities and cyber security specialists have long said the Kremlin employs criminal hackers for its geostrategic purposes. They say the arrangement offers deniability to Moscow and freedom from legal troubles for the hackers.
The FSB in Moscow did not respond immediately to a request for comment on Wednesday evening. The Russian government had no official comment on the charges in the Yahoo case.
Russian news accounts stressed that one of the FSB agents, Dmitry Dokuchaev, was arrested by Russian authorities in December and charged with treason.
The indictment charges Dokuchaev with having acted as a handler for a hacker named Karim Baratov, directing him to use the Yahoo data to crack emails on other systems and paying him a bounty when he succeeded. Baratov is in custody in Canada, according to the Toronto police, while Dokuchaev remains in Russia.
The charges coincide with mounting tensions between U.S. intelligence agencies and Russian President Vladimir Putin's government, which they accused of hacking the 2016 U.S. presidential election to influence the vote in favor of then-Republican candidate Donald Trump.
In addition, congressional committees are investigating possible links between Russian figures and associates of President Trump.