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Chris Krebs Resigns to Challenge Trump-Ordered Investigation

The former CISA director steps down from SentinelOne to fully focus on opposing President Trump's executive order targeting him and his associates.

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WASHINGTON, DC - MAY 14: Christopher C. Krebs, director of the Homeland Security Department's Cybersecurity and Infrastructure Security Agency speaks before the Senate Judiciary Committee on May 14, 2019 in Washington, DC. In a paper titled “A Formal Analysis of 5G Authentication,” researchers from ETH Zurich, the University of Lorraine and the University of Dundee warned that 5G could usher in a new era of security threats. (Photo by Tasos Katopodis/Getty Images)
Christopher Krebs, former director of the Cybersecurity and Infrastructure Security Agency, in Washington in 2020.
Former CISA Director Chris Krebs speaking at an Axios event in Washington in February. Photo: Kristoffer Triplaar on behalf of Axios.

Overview

  • President Trump issued an executive order on April 9, 2025, revoking Chris Krebs' security clearances and directing a Justice Department investigation into his tenure at CISA.
  • Krebs, who led CISA during the 2020 election and declared it the 'most secure in American history,' has been accused by Trump of acting in 'bad faith' and abusing his government authority.
  • In response to the executive order, Krebs resigned from his role at cybersecurity firm SentinelOne to avoid impacting the company and dedicate himself to fighting the investigation.
  • The cybersecurity industry has largely remained silent on the unprecedented targeting of Krebs, with only a few voices publicly defending him against what some see as retaliatory action.
  • Krebs has framed his fight as a defense of democratic norms, free speech, and the rule of law, emphasizing the broader implications of executive overreach.