This the same threat model Facebook poses. Don't want Facebook to know your phone number? You just won't tell them, right? Well Facebook scanned someone else

This the same threat model Facebook poses. Don't want Facebook to know your phone number? You just won't tell them, right? Well Facebook scanned someone else's phone number list and got your number that way for their shadow profile. Too bad, your full name, phone numbers, and addresses were harvested by Facebook due to someone or someones else.