What was exposed, when it happened, and which databases confirm it.
- accounts
- 509,458,528
- Breached
- August 1, 2019
- Last Update
- April 6, 2021
Were you caught in this breach?
Search your email, phone number or username against every record CheckLeaked indexes.
What happened
In April 2021, a large data set of over 500 million Facebook users was made freely available for download. Encompassing approximately 20% of Facebook's subscribers, the data was allegedly obtained by exploiting a vulnerability Facebook advises they rectified in August 2019. The primary value of the data is the association of phone numbers to identities; whilst each record included phone, only 2.5 million contained an email address. Most records contained names and genders with many also including dates of birth, location, relationship status and employer.
Compromised Info
- Dates of birth
- Email addresses
- Employers
- Genders
- Geographic locations
- Names
- Phone numbers
- Relationship statuses
Attestation
Four independent databases catalog this breach and they do not always agree. Each lane below is one source’s own count.
Sources & Link Methods
- LeakCheck— linked via automatic string matching
- Dehashed— linked via domain matching
- HIBP
FAQ
What was leaked in the Facebook breach?
The Facebook breach exposed: Dates of birth, Email addresses, Employers, Genders, Geographic locations, Names, Phone numbers, and Relationship statuses.
When did the Facebook breach happen?
The Facebook breach was disclosed on August 1, 2019 and affected 509,458,528 records.
Am I affected by the Facebook breach?
Search your email, phone or username at checkleaked.cc to find out whether your data appears in the Facebook leak.