U.S. Power Grid Vulnerable to Enemy Attack, Lawmakers Say

Several major U.S. utilities are under “constant” cyberattack and haven’t taken precautions to protect critical systems from Iran, North Korea and other adversaries, according to a congressional survey of more than 100 companies accounting for much of the nation’s power system.

The survey shows the nation’s electrical grid remains “highly vulnerable” to attack after four years of failed efforts to pass major cyber-security legislation, according to an accompanying report. Industry trade groups, including the Edison Electric Institute, joined by Republicans in the Senate, opposed the bill, arguing minimum cyber-security standards would be out-of-date by the time they were implemented.