Last September, Facebook drew fire for abusing the phone numbers users provided for two-factor authentication messages, sending spam advertising messages over the same channel -- now, rather than reforming its ways, Facebook has doubled down on poisoning the security well, by adding a no-opt-out policy of allowing anyone in the world to search for you by phone number if you provide that number for two-factor auth. Read the rest
Facebook forces you to expose your phone number to the whole world in order to turn on two-factor authentication
