DOD’s Jack Wilmer to Resign as Deputy Cybersecurity CIO

Jack Wilmer, the Department of Defense's chief information security officer and deputy chief information officer for cybersecurity, will leave his post by the end of July, according to a defense spokesperson. 

DOD CIO Dana Deasy announced that Mark Hakun, Wilmer's principal director, will take over the top cybersecurity role in an acting capacity, FedScoop reported Wednesday.

“Jack Wilmer has been an incredible asset to the CIO office. It goes without saying that Jack is a true leader in his field,” Deasy said. In a statement, Deasy noted that Wilmer published a cyber risk reduction strategy and "Cyber Scorecard" during his tenure.

Wilmer was also credited with championing greater diversity in the information technology workforce in the Pentagon and across the government. 

“When you look at what our adversaries are actually doing, the approaches they’re taking, they really do have some very clever and creative things they’re doing. And one of the things I certainly realized is one way of thinking about what they might be doing is not at all sufficient,” Wilmer said at a past FedScoop event.

Wilmer previously served in the White House's Office of Science and Technology and as a senior officer at the Department of Homeland Security. Many of his duties involved cybersecurity and IT modernization. 

At the DHS, he served as the Defense Information Systems Agency's vice director of development and business. He was responsible for the development, acquisition and evolution of all capabilities provided by DISA.

Wilmer also served as DISA's infrastructure development executive and deputy chief technology officer for enterprise services.

He earned a bachelor's degree in computer science from Princeton University in 2000.