It's part of “the most significant hiring initiative” the department has ever undertaken, according to Alejandro Mayorkas.

"Our government got hacked last year and we didn’t know about it for months,” the DHS chief lamented Wednesday.

Tim Maurer has focused on cybersecurity in the international and financial services spheres.

“The cybersecurity of our nation [will be] one of my highest priorities,” Mayorkas said in his confirmation hearing.

It's the role formerly held by Chris Krebs, whom Donald Trump fired via tweet.

A day before his inauguration, Biden's picks for top Cabinet posts faced cyber questions in their confirmation hearings.