The Kremlin has said on Thursday that its FSB domestic spy service was not involved in any unlawful cyber activity, a day after the United States charged two Russian intelligence agents and two others with hacking 500 million Yahoo accounts.

Kremlin spokesman Dmitry Peskov said Russia had received no official information about the charges and had gleaned all it knew about the case from media reports. He told reporters on a conference call Moscow hoped to receive official information.

“We have said repeatedly that there can be no discussion of any official involvement of any Russian office, including the FSB (Federal Security Service), being involved in any unlawful cyber activities,” said Peskov