Personal information for over 500 million Facebook users was found on the low-level hacking site.
The data posted, first reported by Business Insider, included phone numbers, full names, locations, birth dates and email addresses of 533 million users.
The information covers people in more than 100 counties, including 32 million US user registrations, 11 million UK users and 6 million Indian users.
Insider reported that it verified the data by matching the numbers of Facebook users on their page with the data set.
The data is said to be several years old, according to the press.
A spokesman for the social media platform said the information was scrutinized after a vulnerability was fixed on the site in 2019.
Hill contacted Facebook for comments.
The latest data revelation is the latest example of the challenges the social networking company faces in terms of user data and privacy.
In 2018, the platform got rid of a feature that allowed users to search for “friends” using their personal phone numbers after discovering that Cambridge Analytica could access this information.
Nearly 87 million Facebook users at the time had their personal information compromised, according to a report by The Associated Press.
A Ukrainian security researcher found a similar database with phone numbers and unique user IDs of more than 267 million Facebook users in 2019. Most of these users were based in the US, the AP reported.
It is currently unclear whether that database is linked to the latest findings.
“These are old data that was previously reported in 2019,” Facebook told AP. “We found and fixed this issue in August 2019.”