A congressional leader on cybersecurity is seeking to find out why federal agencies have failed to implement measures that would improve their cybersecurity posture against the growing volume of cyberattacks against government.

“Cyberattacks on our federal government have increased by 1,300 percent in 10 years,” Democratic California Rep. Ted Lieu wrote in a letter to Federal Chief Information Security Officer Greg Touhill. “Yet over 1,000 … recommendations to improve cybersecurity have failed to be implemented by federal agencies.”