Hacker pleads guilty to huge Yahoo hack, admits helping Russia’s FSB
The operative, Karim Baratov, appeared in a San Francisco federal court on Tuesday afternoon. He also admitted that his role was to "hack webmail accounts of individuals of interest to the FSB," the Russian internal security service. Baratov then sent those passwords to his alleged co-conspirator, Dmitry Aleksandrovich Dokuchaev.
Karatov was indicted in late February 2017 along with three other men who remain in Russia.