Facebook Data Breach History
WebsiteMeta Platforms, Inc., doing business as Meta, and formerly named Facebook, Inc., is an American multinational technology conglomerate. It owns and operates Facebook, Instagram, Threads, and WhatsApp.
This page shows all data breaches of Facebook. View the complete breach timeline, records exposed, root causes, and AI breach risk score. BreachHistory tracks disclosed data breaches worldwide.
Data Breach Timeline — All Facebook Breaches
- 2025 2025 Infostealer subset — 17M Facebook logins 17.0M records Share
- 2025 2025 Infostealer credential dump — 16B+ 16.0B records Share
- 2025 2025 Alleged API scraping — 1.2B records 1.2B records Share
- 2024 2024 MOAB — 26B records aggregated 26.0B records Share
- 2023 $725M Cambridge Analytica settlement opens for applications Unknown records Share
Facebook Data Breach Summary
This page tracks the Facebook data breach history and cybersecurity incidents affecting Facebook (United States). BreachHistory currently indexes 24 publicly disclosed or catalogued incidents spanning 2005 through 2025, with approximately 46.0 billion records reported as exposed across all indexed events. These totals may include overlapping datasets or third-party estimates and should not be interpreted as unique affected users.
The Facebook breach timeline includes major data breaches, cyber attacks, data leaks, credential exposures, API abuse, and other security incidents. Each incident provides details on the estimated records exposed, attack method, affected data types, and supporting public sources. Currently, 0 incidents are company-confirmed, while 2 remain unverified claims pending independent verification.
Largest Facebook Data Breaches
The largest indexed incidents include the 2024 MOAB — 26B records aggregated, the 2025 Infostealer credential dump — 16B+, and the 2025 Alleged API scraping — 1.2B records, along with additional historical incidents involving exposed passwords, public databases, and large-scale data scraping. Record counts originating from threat actors or leak sites should be treated as estimates unless confirmed by Facebook or a regulator. Below is the list of large data breaches:
- 2024 2024 MOAB — 26B records aggregated — about 26.0B records exposed · Catalogued incident
- 2025 2025 Infostealer credential dump — 16B+ — about 16.0B records exposed · Catalogued incident
- 2025 2025 Alleged API scraping — 1.2B records — about 1.2B records exposed · Unverified claim
- 2019 Up to 600M passwords stored in plaintext — about 600.0M records exposed · Catalogued incident
- 2019 April 2019 user data exposed on public servers — about 533.0M records exposed · Catalogued incident
- 2021 530M+ user records leaked via contact importer scraping — about 530.0M records exposed · Catalogued incident
- 2019 419M user records on exposed server — about 419.0M records exposed · Catalogued incident
- 2019 267M–309M Facebook accounts on dark web — about 309.0M records exposed · Catalogued incident
What Information Was Exposed?
Depending on the incident, exposed data may include email addresses, passwords and login credentials, phone numbers, names, physical addresses, profile information, and other personal information (PII). The exact data varies between incidents, so review each breach page before assuming your information was affected.
Facebook Data Breach 2026
At the time of this update, no Facebook data breach has been catalogued for 2026. New incidents are added as official disclosures, regulatory filings, or credible cybersecurity reports become available.
What To Do If You Were Affected
If you believe your account may have been involved in a Facebook data breach, change any reused passwords, enable multi-factor authentication (MFA), monitor your account for suspicious activity, and be cautious of phishing emails or fake breach notifications.
This Facebook breach history is maintained by BreachHistory using public disclosures, regulatory filings, security research, and clearly labelled third-party claims. For the complete breach timeline, records exposed, incident details, and AI Breach Risk Score, explore the sections on this page.