Meta Platforms Data Breach (2026): What Was Exposed & What to Do

✅ Official notice on file. Meta Platforms, Inc. filed this data breach notice with the California Attorney General on Jun 5, 2026. Compare it with the letter you received: the official copy is linked below.

View the official notice · Read the letter (PDF)

Meta Platforms, Inc. reported a data breach caused by unauthorized access to its computer network. The information involved includes date of birth, username / password, email address, phone number.

Key facts

Unauthorized access Apr 17, 2026 – May 31, 2026
Incident type Network intrusion
Data exposed Date of birth, Username / password, Email address, Phone number
Reported to California AG Jun 5, 2026

What to do now

  1. Your date of birth is often used to verify identity: add a fraud alert to your credit file so lenders must confirm it is really you.
  2. Change the password on this account and on any other site where you reused it, and turn on two-factor authentication.
  3. Expect targeted phishing that mentions this incident: do not click links in unexpected emails about the breach.
  4. Be wary of calls or texts that mention this incident and ask for codes or payment.
  5. Get your free credit reports at AnnualCreditReport.com and look for accounts you do not recognize.

Timeline

  • Apr 17, 2026 — Unauthorized access begins
  • Jun 5, 2026 — Breach reported to the California Attorney General

Other recent data breaches

Source: notification letter and filing submitted by Meta Platforms, Inc. to the California Attorney General. BreachLetter is not affiliated with Meta Platforms, Inc.. Details extracted from the official letter; always follow the instructions in your own copy.