A House committee investigation into the OPM breach said leadership failed to implement recommended security improvements that could have prevented the attack and data loss.

An investigation into the OPM breach has been completed by the House Oversight and Government Reform committee and although the report is more than 200 pages long, experts said there were details missing.

The report paints a grim picture.

"The government of the United States of America has never been more vulnerable to cyberattacks. No agency is safe. In recent data breaches, hackers took information from the United States Postal Service; the State Department; the Nuclear Regulatory Committee; the Internal Revenue Service; and even the White House," the report begins. "None of these data breaches though compare to the data breaches of the U.S. Office of Personnel Management (OPM)." Read more.