On April 4th 2021, 533 million Facebook users’ phone number has been leaked on a popular hacker forum for free. The sold data included 533,313,128 Facebook users, with information such as a member’s mobile number, Facebook ID, name, gender, location, relationship status, occupation, date of birth, and email addresses.
Since then, Troy Hunt has added the leaked data to his Have I Been Pwned data breach notification service to help users determine if a Facebook member’s data was exposed in the leak.
Facebook users can now use the Have I Been Pwned data breach notification site to check if their phone number was exposed in the social site’s recent data leak.
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To check if the Facebook leak included your phone number, you can visit Have I Been Pwned and enter your phone number in international format(including country code) in the search field. Once you click the ‘pwned?’ button, a list of all the data breaches the number was exposed to will be displayed.