Ex-Anthropic figure Jacob Cox caught registering LinkedIn account under fake name

nptacek · x · 2026-09-10

Screenshots show Jacob Cox, formerly of Anthropic, apparently registered a LinkedIn account as 'Lucy tumer' using his own email address — alongside two username changes and no prior X posts, a pattern commenters find suspicious. IceSolst framed it as an "astroturfed apocalypse," implying manufactured doomer narratives. The LinkedIn screenshot is included as evidence.

Related event: Anthropic Researcher Quits Over Safety Fears as Alignment Lead Puts Extinction Risk Above 10%(131 posts)→

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