Christopher Krebs, the top U.S. cybersecurity official, has been ousted by President Trump.
Krebs, a Trump appointee, has served as director of the Cybersecurity and Infrastructure Security Agency (CISA) at the Department of Homeland Security since CISA’s establishment in 2018.
Krebs previously helmed CISA’s predecessor agency, the National Protection and Programs Directorate.
Trump announced tonight on Twitter that Krebs would be terminated effective immediately, citing what he claimed to be a “highly inaccurate” recent statement by the cyber chief about the security of the 2020 election.
Krebs had expected to be fired by the White House, after attracting attention for his efforts to debunk conspiracies about voter fraud and the security of the election.
Krebs has served at DHS since 2017.
Prior to his time in federal government, he served as the director of cybersecurity policy on Microsoft’s Government Affairs Team.
He has focused on issues including shoring up election security and protecting critical infrastructure from attack, among other cyber initiatives.
Krebs’s removal will leave a tremendous void atop the federal agency that has served as a leading driver in the effort to secure U.S. elections and other cybersecurity priorities.
He earned bipartisan acclaim during his time serving in the Trump administration and has been a trusted voice among security officials.
Krebs’s departure adds to a growing list of Trump administration officials who have been fired or stepped down in the wake of the general election, with Trump firing Defense Secretary Mark Esper and eying letting go CIA Director Gina Haspel and FBI Director Christopher Wray.
CISA separately put out a statement last Thursday from stakeholders and officials that affirmed that the 2020 election was “the most secure in American history” and dispelling assertions that voting systems were in some way compromised, representing an implicit rebuke of assertions by the president and some of his supporters.
“When states have close elections, many will recount ballots. All of the states with close results in the 2020 presidential race have paper records of each vote, allowing the ability to go back and count each ballot if necessary,” the statement reads.
“This is an added benefit for security and resilience. This process allows for the identification and correction of any mistakes or errors. There is no evidence that any voting system deleted or lost votes, changed votes, or was in any way compromised,” it continues.
Trump has claimed without evidence that there was widespread voter fraud in the election and refused to concede to Joe Biden.
Major news outlets projected Biden as the winner on Nov. 7.
Trump has through his Twitter account endorsed a baseless theory that Dominion Voting System, a voting software company used in several states, switched votes from him to Biden.