Iranian cyber-attackers have been targeting the U.S. electrical grid’s networks and stealing highly sensitive data, an Associated Press investigation revealed on Monday.
Brian Wallace, a researcher at the cyber-security firm Cylance, discovered that critical files from Calpine Corporation, which operates 82 power plants in 18 states and Canada, were stolen in a breach that began around August 2013 and may be ongoing. The information in those files included passwords, diagrams, and sensitive engineering designs of power plants, at least one of which was marked “Mission Critical.” After analyzing circumstantial evidence, investigators concluded that the data was compromised by Iranian hackers.




















