Over a 24-hour period, top U.S. cyber defenders engaged in a pitched battle with Russian hackers who had breached the unclassified State Department computer system and displayed an unprecedented level of aggression that experts warn is likely to be turned against the private sector. Whenever National Security Agency hackers cut the attackers’ link between their command and control … Continue reading It Took ‘Hand to Hand’ Cyber Combat for NSA to Remove Russian Hackers From State Department Networks