Meta Platforms Inc. has appointed Assaf Keren as its new chief information security officer, succeeding Guy Rosen, who is retiring after more than a decade at the company. Keren, an Israeli cybersecurity veteran, arrives from Qualtrics where he was chief security officer and previously held CISO roles at PayPal, bringing about 25 years of experience. Rosen will remain in a transition role for several months before departing, according to Meta. Keren has said his priority will be embedding security and trust into Meta’s AI initiatives as the company expands its AI efforts and navigates heightened data protection and regulatory scrutiny. The leadership change underscores Meta’s ongoing emphasis on cybersecurity leadership amid evolving threats and scrutiny, even as investor reactions around the announcement vary. Coverage across outlets notes the context of Meta’s security leadership gap and the broader implications for security posture and AI governance.