20 Leaders Who Built the CISO Era: 2 Decades of Change

Christopher Krebs, the inaugural director of CISA, is profiled for transforming the agency into a national cyber defense hub and for leading election-security efforts during the contentious 2020 U.S. election. The article recounts his public rejection of fraud claims, his firing by President Trump, subsequent private-sector roles and legal/political consequences (including revoked security clearance), and argues his legacy remains in institutionalizing public–private collaboration on cybersecurity rather than describing any specific cyber incident.