Facebook Data Breach (2019)
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.
Related breaches
Match Group (Tinder, Hinge, OkCupid) Data Breach — January 2026
ShinyHunters claimed responsibility for stealing over 10 million Match Group user records in early 2…
Crunchbase Massive Personal Records Leak — January 2026
ShinyHunters exfiltrated approximately 2 million records from the business-intelligence platform Cru…
149 Million Credential Mega-Exposure — January 2026
Security researchers discovered a publicly exposed 96 GB database with 149 million unique logins cov…
A breach leaks your credentials. Then hackers chain those credentials to your address, family, phone, and employer using public broker sites. We’re the only tool built around that chain.
⚠ Were you in this breach?
Free email scanner. We check your address against 15.4B+ leaked records in 15 seconds — then show you the $19 cleanup that removes you from the broker sites aggregating leaked data.
Check my email — free →