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Content type: Report
Like many others, PI were alarmed at recent reports that Facebook have been making mobile phone numbers (which users believed to be) provided for the express purpose of "two-factor authentication" (2FA) both searchable, and a target for advertising by default.
One of the myriad ways Facebook displays targeted adverts to users is through so-called "Custom Audiences". These "custom audiences" are lists of contact details, including phone numbers and email addresses, uploaded by advertisers.…
Content type: Report
6 March 2019
Privacy International (PI) has written Facebook to express our concern and request urgent answers regarding its policy on the sharing of mobile phone numbers of its users.
Alarmingly, recent reports say that some of the phone numbers provided by users for the express purpose of two-factor authentication (2FA) as a way of securing their accounts are now made searchable across the platform by default.
PI is concerned that allowing such numbers to be searchable…