Who is the CISO of Meta?

Assaf Keren is the current Chief Information Security Officer of Meta on CISO Tribune's record, appointed on July 22, 2026.

How many security-leadership moves has CISO Tribune tracked at Meta?

CISO Tribune has tracked 2 moves at Meta since June 2, 2026.

When was Assaf Keren appointed at Meta?

Assaf Keren's appointment as Chief Information Security Officer of Meta was announced on July 22, 2026, per SecurityWeek.

Who held the seat at Meta before Assaf Keren?

Guy Rosen. The record of Assaf Keren's appointment names Guy Rosen as the predecessor.

Who are the security chiefs at other Technology organizations?

On CISO Tribune's record they include Kathy Wang at micro1, Doug Bowers at MongoDB, Elyse Gunn at Nasuni and Ryan Davis at New Charter Technologies.

Which board body oversees cybersecurity at Meta?

Meta's fiscal 2025 Form 10-K places oversight of cybersecurity risk with the Audit & Privacy Committee.

Company record

Meta CISO: Assaf Keren

The current Chief Information Security Officer of Meta, as tracked by CISO Tribune, is Assaf Keren, whose appointment was announced on July 22, 2026 (SecurityWeek). The record names Guy Rosen as the predecessor. Read the record. The record entered the Wire on August 1, 2026.

Career profile: Assaf Keren on CISO Spotlights ↗

What Meta tells the SEC

Its fiscal 2025 Form 10-K, filed January 29, 2026, carries an Item 1C cybersecurity disclosure that describes a Chief Information Security Officer, with oversight by the Audit & Privacy Committee; the filing names Guy Rosen as of its filing date. Read the section verbatim or the filing on sec.gov. A filing describes governance as of its date, not today's seat.

Tracked by the Wire since June 2, 2026 · 2 recorded moves · every claim links to a sourced record · Updated November 10, 2026

Where Meta appears on the record (4)

Every page on CISO Tribune and its network that carries this company, 4 in all.

On the Wire (2): Assaf Keren named Chief Information Security Officer at Meta · 2026-07-22
Guy Rosen steps down as Chief Information Security Officer of Meta · 2026-06-02
SEC filing: Form 10-K cybersecurity disclosure, fiscal 2025 · Item 1C, filed January 29, 2026
Career profile: Assaf Keren on CISO Spotlights ↗

How the top security seat at Meta has changed hands

CISO Tribune's record names 2 people in the top security seat at Meta, the most recent first. Each line rests on the record linked beside it.

Assaf Keren: named Chief Information Security Officer, announced on July 22, 2026 (record). The appointment was announced 50 days after Guy Rosen's departure was.
Guy Rosen: Chief Information Security Officer; departure announced on June 2, 2026 (record).

About Meta

CISO Tribune's Leadership Bench files Meta under Technology and North America. The SEC classifies it under standard industrial classification 7370, Services-computer programming, data processing, etc., and EDGAR lists its ticker as META. The Wire has 2 security-leadership moves at Meta on record, the earliest announced on June 2, 2026.

What Meta's 10-K says about security governance

Meta's fiscal 2025 Form 10-K, filed January 29, 2026, describes its cybersecurity governance in Item 1C. The lines below are that filing's own statements, each with the sentence it comes from.

Top security role, as the filing names it: Chief Information Security Officer.
Board oversight: the Audit & Privacy Committee.
“Our board of directors has oversight of our strategic and business risk management and has delegated cybersecurity risk management oversight to the Audit & Privacy Committee of our board of directors (Audit & Privacy Committee).”
Person the filing names: Guy Rosen, as of January 29, 2026.
“Our Chief Information Security Officer (CISO), Guy Rosen, leads our cybersecurity program and oversees teams across the company supporting core security capabilities.”
Experience of the security leadership, as the filing states it:
“Mr. Rosen has two decades of experience in various cybersecurity, software development, product management, and other technology-related roles.”
Material incidents: the filing states none.
“In 2025, we did not identify any cybersecurity threats that have materially affected or are reasonably likely to materially affect our business strategy, results of operations, or financial condition.”

Plain-English reading and full text of the filing · the filing on sec.gov

Security leadership timeline

2026-07-22

Assaf Keren named Chief Information Security Officer at Meta

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.

2026-06-02

Guy Rosen steps down as Chief Information Security Officer of Meta

Guy Rosen announced his departure from Meta after nearly 13 years with the company, where he served as Chief Information Security Officer.

Previous security leaders of Meta

Guy Rosen: Chief Information Security Officer; departure announced on June 2, 2026 record

What Assaf Keren has said in public

CISO Tribune's Voices section carries 1 public post or talk by Assaf Keren. The most recent are listed with their dates.

On product team culture and celebrating milestones, LinkedIn, November 5, 2026.

Assaf Keren's record

Security chiefs at other Technology organizations

Other organizations CISO Tribune files under Technology with a named security chief on record: those in North America first, in alphabetical order from Meta onward.

micro1: Kathy Wang, Chief Information Security Officer.
MongoDB: Doug Bowers, Chief Information Security Officer (CISO).
Nasuni: Elyse Gunn, Chief Information Security Officer (CISO).
New Charter Technologies: Ryan Davis, Chief Information Security Officer (CISO).
Nvidia: David Reber Jr., Chief Security Officer.
Opti9: Mat Steinlin, Chief Information Security Officer.
Oracle: Rob Duhart, Chief Security Officer.
PagerDuty: Pritesh Parekh, Chief Information Security Officer (CISO).

The full Technology bench

Questions CISOs ask about Meta

Who is the CISO of Meta?: Assaf Keren is the current Chief Information Security Officer of Meta on CISO Tribune's record, appointed on July 22, 2026.
How many security-leadership moves has CISO Tribune tracked at Meta?: CISO Tribune has tracked 2 moves at Meta since June 2, 2026.
When was Assaf Keren appointed at Meta?: Assaf Keren's appointment as Chief Information Security Officer of Meta was announced on July 22, 2026, per SecurityWeek.
Who held the seat at Meta before Assaf Keren?: Guy Rosen. The record of Assaf Keren's appointment names Guy Rosen as the predecessor.
Who are the security chiefs at other Technology organizations?: On CISO Tribune's record they include Kathy Wang at micro1, Doug Bowers at MongoDB, Elyse Gunn at Nasuni and Ryan Davis at New Charter Technologies.
Has Assaf Keren spoken or written publicly?: CISO Tribune's Voices section carries 1 public post or talk by Assaf Keren, the most recent dated November 5, 2026.
Which board body oversees cybersecurity at Meta?: Meta's fiscal 2025 Form 10-K places oversight of cybersecurity risk with the Audit & Privacy Committee.

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