Meta Appoints Assaf Keren as Chief Information Security Officer Following Guy Rosen's Departure

Jul 22, 2026

Meta Platforms Inc. appoints veteran cybersecurity executive Assaf Keren as its new chief information security officer on July 22, 2026. Keren, who joins from Qualtrics and previously worked at PayPal, succeeds Guy Rosen, who is departing after nearly 13 years. Keren's appointment comes as Meta undergoes a massive AI-focused restructuring, committing up to $145 billion in capital expenditure for 2026, and follows a June 2026 breach where hackers hijacked over 20,000 Instagram accounts.

Assaf Keren CISO appointment

▪Meta Platforms Inc. appointed Assaf Keren as its next chief information security officer on July 22, 2026.
▪Assaf Keren has over 25 years of cybersecurity experience, beginning with Israel's defence forces in 2000, and holds patents in security and AI technologies.
▪Assaf Keren joins Meta Platforms Inc. from software platform Qualtrics, where Assaf Keren served as chief security officer for two years.
▪Prior to Qualtrics, Assaf Keren served as the chief information security officer at PayPal Holdings Inc.

Guy Rosen departure timeline

▪Guy Rosen will remain as chief information security officer through a transition period of several months before leaving Meta Platforms Inc. later in 2026.
▪Guy Rosen oversaw Meta Platforms Inc.'s election integrity efforts following the 2016 election and became the company's first dedicated chief information security officer in June 2022.
▪Guy Rosen joined Meta Platforms Inc. in 2013 when the company acquired Guy Rosen's analytics startup Onavo.
▪Guy Rosen, Meta Platforms Inc.'s chief information security officer, announced plans to depart the company in June 2026 after nearly 13 years.

Meta AI security mandate

▪Assaf Keren emphasized the need to build security and trust into Meta Platforms Inc.'s artificial intelligence systems from the start rather than bolting it on afterward.
▪Assaf Keren stated that Assaf Keren's priority at Meta Platforms Inc. will be to strengthen security and trust as the company expands its artificial intelligence efforts.

Instagram chatbot vulnerability breach

▪Attackers tricked the Meta Platforms Inc. chatbot into changing account recovery email addresses, allowing them to reset passwords and seize control before Meta Platforms Inc. patched the flaw.
▪In June 2026, hackers exploited a vulnerability in Meta Platforms Inc.'s AI-powered customer support chatbot to hijack more than 20,000 Instagram accounts.

Meta AI infrastructure restructuring

▪Meta Platforms Inc.'s broader restructuring has cut roughly 8,000 jobs and reorganized thousands of employees into AI-focused teams under Chief AI Officer Alexandr Wang.
▪Meta Platforms Inc. has committed up to $145 billion in capital expenditure for 2026, with nearly all of it flowing to data centers, GPUs, and systems supporting its Llama models and Superintelligence Labs.