Encryption “would not have helped” at OPM, says DHS official

During testimony today in a grueling two-hour hearing before the House Oversight and Government Reform Committee, Office of Personnel Management (OPM) Director Katherine Archuleta claimed that she had recognized huge problems with the agency's computer security when she assumed her post 18 months ago. But when pressed on why systems had not been protected with encryption prior to the recent discovery of an intrusion that gave attackers access to sensitive data on millions of government employees and government contractors, she said, "It is not feasible to implement on networks that are too old." She added that the agency is now working to encrypt data within its networks.

But even if the systems had been encrypted, it likely wouldn't have mattered. Department of Homeland Security Assistant Secretary for Cybersecurity Dr. Andy Ozment testified that encryption would "not have helped in this case" because the attackers had gained valid user credentials to the systems that they attacked—likely through social engineering. And because of the lack of multifactor authentication on these systems, the attackers would have been able to use those credentials at will to access systems from within and potentially even from outside the network.

House Oversight Chairman Jason Chaffetz (R-Utah) told Archuleta and OPM Chief Information Officer Donna Seymour, "You failed utterly and totally." He referred to OPM's own inspector general reports and hammered Seymour in particular for the 11 major systems out of 47 that had not been properly certified as secure—which were not contractor systems but systems operated by OPM's own IT department. "They were in your office, which is a horrible example to be setting," Chaffetz told Seymour. In total, 65 percent of OPM's data was stored on those uncertified systems.

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