Person

Mike Fein

Lately: Anthropic as Head of Security, from Google.

Public record only: name, role, employer, source, and date.

Recorded moves, newest first

Feb 1
Mike Fein to Anthropic as Head of Security
Security leadership arriving before the infrastructure buildout peaked suggests Anthropic sequenced protection ahead of physical expansion.
hirereportedFeb 1, 2026Tech Funding News: Anthropic's Top 10 Hires of 2026 as It Lures Talent From OpenAI, Google, xAI and Microsoft

In the archive

Hiring & Talent
The Biggest AI Hires of 2026 (So Far)
Fidji Simo gave up her post as OpenAI's second-in-command to illness, Jeff Dean left Google with three senior colleagues to found a rival, and John Ternus took over at Apple, redrawing AI's leadership in 2026.