DARPA’s Hail Mary Plan to Restart a Hacked US Electric Grid

In his years-long career developing software for power grids, Stan McHann had never before heard the ominous noise that rang out last Wednesday. Standing in the middle of a utility command center, he flinched as a cyberattack tripped the breakers in all seven of the grid’s low voltage substations, plunging the system into darkness. “I …