People have tended to judge that Russia has the world's leading hacking resources simply because they get caught so often. The fact probably is, however, that the USA has the greatest cyberwarfare resources, by the same magnitude as they have the largest hot warfare resources. A few other countries like the UK and Israel are also reportedly ahead of Russia. I have no direct knowledge, but I would guess it is extremely likely that the CIA has penetrated Russian information and communications systems at every level.