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HOME/PEOPLE/SEAN CAIRNCROSS
// PERSON

Sean Cairncross

ROLE NATIONAL CYBER DIRECTORAT OFFICE OF THE NATIONAL CYBER DIRECTORMENTIONS 4LAST SEEN SEPTEMBER 23, 2026
// BIO

Sean Cairncross is an American lawyer and political operative who has served as the United States National Cyber Director since August 2025, heading the Office of the National Cyber Director. In this role, he acts as President Trump's principal advisor on national cybersecurity policy and strategy, focusing on coordinating with allies to counter nation-state cyber threats and streamlining cybersecurity regulations in partnership with the private sector. He previously served as CEO of the Millennium Challenge Corporation and as Chief Operating Officer of the Republican National Committee.

Discussed in
// RECENT MENTIONS
// SIGNALS
4 SIGNALS
01
mention·StrictlyVC·SEPTEMBER 23, 2026

“is being considered for President Donald Trump's new 'AI czar' role, alongside... Michael Kratsios, OPM Director Scott Kupor, and National Cyber Director Sean Cairncross.”

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02
mention·Axios AI+·SEPTEMBER 21, 2026

“Cairncross played a role in the administration's handling of the release of Anthropic's Mythos.”

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03
mention·Axios AI+·JULY 6, 2026

“National cyber director Sean Cairncross... also participated in technical discussions.”

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04
mention·AI+ Government·JUNE 18, 2026

“Cairncross believes that Treasury has become too involved, while Bessent and allies in the White House believe Cairncross has not met the moment with the necessary urgency.”

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AI-extracted from podcast / newsletter / paper summaries. May contain errors.