SixGen hires former DOD CISO as new chief executive

Jack Wilmer has become the new CEO of SixGen.

Jack Wilmer has become the new CEO of SixGen. SixGen

Jack Wilmer moves over from Core4ce and brings deep experience from across the cybersecurity realm, as well as a background in mergers and acquisitions.

SixGen has made its biggest move to-date after being acquired by private equity group Washington Harbour Partners – the hire of a new chief executive.

Jack Wilmer stepped into the CEO role as of Monday morning and joins from his old company Core4ce.

Ethan Dietrich, SixGen's founder and now-former CEO, has moved into an advisory role.

Wilmer brings with him extensive experience in the cybersecurity arena. Before Core4ce, he was deputy chief information officer for cybersecurity and chief information security officer at the Defense Department.

He also leaves Core4ce on good terms with his successor praising Wilmer’s tenure, during which the company closed five acquisitions dating back to August 2020.

“Under his leadership, Core4ce firmly established itself as a leader in defensive cybersecurity and digital modernization, with a focus on securing sensitive data,” said Mike Morehouse, a co-founder of Core4ce and the new CEO.

In joining SixGen, Wilmer takes the reins of another cybersecurity-focused company.

“SixGen is at the forefront of cyber solutions, dedicated to enhancing the capabilities of the U.S. defense and intelligence communities,” said Mina Faltas, managing partner of Washington Harbour Partners.

Washington Harbour acquired SixGen in November and since then has brought in two other C-level executives, not counting Wilmer. In January, Amanda Lamber became chief people officer and Ashequel Hoque was named chief financial officer.