November 7, 2022

Facebook's new tool

TIL about Facebook (or Meta)’s new tool allowing people to check if the former has their contact information such as phone number and email address, even if they have never handed them over, and delete the data.

Facebook collects data about non-users via a user’s address book when permission is granted. Data collected are: names, phone numbers and email addresses. These information are processed to:

When the contact information is requested to be deleted, a copy is kept in a block list to prevent it from being uploaded again through someone’s address book.

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