White House cyber coordinator Rob Joyce will leave his role in the administration and return to the National Security Agency, where he worked prior to his current position, Reuters reported April 16.

Joyce joined the Trump administration over a year ago, and was outspoken on cyber issues facing the nation, such as the over-usage of Social Security numbers as an online identifier.

The announcement comes on the heels of Joyce’s boss Tom Bossert’s April 10 departure as homeland security adviser and Lt. Gen. H.R. McMaster’s April 6 exit from the national security adviser role.

John Bolton, a former U.N. ambassador under President George W. Bush, took over McMaster’s position, though there is no announcement from the White House of who will replace Bossert or Joyce.

CyberScoop reported April 17 that Kirstjen Nielsen told a group of reporters at the RSA Security Conference that Bolton will take the lead in finding a replacement for Joyce.