You Gave Facebook Your Number For Security. They Used It For Ads.

Add “a phone number I never gave Facebook for targeted advertising” to the list of deceptive and invasive ways Facebook makes money off your personal information. Contrary to user expectations and Facebook representatives’ own previous statements, the company has been using contact information that users explicitly provided for security purposes—or that users never provided at all—for targeted advertising.
Read more: https://www.eff.org/deeplinks/2018/09/you-gave-facebook-your-number-security-they-used-it-ads?source=Snapzu