2018-09-26 UTC
# 
@trevortimm "When a user gives Facebook a phone number for two-factor authentication or in order to receive alerts about new log-ins to a user’s account, that phone number became targetable by an advertiser within a couple of weeks." https://gizmodo.com/facebook-is-giving-advertisers-access-to-your-shadow-co-1828476051 (twitter.com/_/status/1045043264796016640)