Guy Rosen, Meta’s CISO and top Israeli executive, announces departure
Veteran leader of cybersecurity and AI transformation to leave after nearly 13 years.
After nearly 13 years at Meta, Chief Information Security Officer Guy Rosen has announced that he is leaving the company.
Calcalist has learned that Rosen, Meta’s most senior Israeli executive, informed employees of his decision to step down. In his internal message, he said he would stay on for several months to support a smooth handover.
Rosen said he plans to spend more time with his family and is beginning a new chapter focused on contributing to Israel’s high-tech ecosystem. He said he intends to advise and work with executives and organizations navigating the AI era.
Rosen has served as Meta’s Chief Information Security Officer (CISO) since 2022, leading cybersecurity across the company’s global infrastructure. Prior to that, he was Vice President of Product Management, responsible for combating abuse across Meta’s platforms, and earlier still he led global growth initiatives. Over the past year, he also initiated and led Meta’s internal AI transformation efforts.
Rosen, 46, returned to Israel last year with his wife and two daughters after nearly a decade in the United States. In 2009, he co-founded the startup Onavo with Roi Tiger. The two met during their military service in Unit 8200 and later worked together at Dov Moran’s startup Modu.
Onavo was acquired by Facebook in 2013 after gaining millions of users and became the foundation of Meta’s R&D center in Israel, which today employs hundreds of workers.
In his farewell message, Rosen wrote: “We faced challenges that no one in the industry or the world had solved. Looking back on more than a decade here, this was the most meaningful work of my career. This is the hardest part of saying goodbye. I look around at colleagues, friends, who lifted me up and from whom I learned everything. I know our important work will be in good hands, because I had the privilege of seeing up close how people I admired became people I learned from.”
Rosen also thanked Meta executives, including Javier Oliván, the company’s chief operating officer, “who flew to Israel 13 years ago and believed in our small Israeli startup,” and Naomi Gleit, Meta’s head of product, “who supported my career here and from whom I learned almost everything I know.” He added that he is grateful to Mark Zuckerberg, “who trusted me with some of our most consequential work and who ultimately makes this place what it is.”
