Meta appoints Assaf Keren as Chief Information Security Officer

Meta named Assaf Keren its next Chief Information Security Officer, succeeding Guy Rosen, who announced earlier in 2026 that he would leave the company after roughly thirteen years. Keren is a veteran enterprise security executive who previously led security at PayPal and Qualtrics, per the appointment coverage.

The succession is notable on two axes. First, Meta replaced a long-tenured insider with an external hire whose background is payments and enterprise SaaS security rather than consumer platform integrity — a signal that the role is being scoped around enterprise-grade security engineering as Meta's AI infrastructure spend accelerates. Second, the transition was announced with a public hand-off period rather than an abrupt exit, which is the pattern boards increasingly prefer for security leadership changes at disclosure-sensitive companies.