White House cyber czar to leave, return to NSABy Dustin Volz SAN FRANCISCO (Reuters) - White House cyber security coordinator Rob Joyce will leave his post and return to the National Security Agency, a White House official said on Monday. "Joyce is three months past his detail of a year and is deciding to return to NSA," the official said. Another senior U.S. official said Joyce was leaving the White House of his own volition and not being forced out by President Donald Trump's new national security adviser, John Bolton, or other personnel.