“I’m highly concerned about that, but not only in Europe — look at the attack on the Metcalf power station in California. We have not solved that. That’s a very disconcerting chain of events here,” Johnson said, referring to the 2013 sniper attack on a California energy grid substation, which took out power to parts of Silicon Valley. He continued: “So trust me, our critical infrastructure is vulnerable to cyber-attack, to potential terrorist attack, and we are not taking this threat seriously enough.
Air Force warns of ‘coordinated physical attacks’ on electric grid