The concept of some big tech company having your first name, last name, email address and phone number just because one of your friends or acquaintances or casu

The concept of some big tech company having your first name, last name, email address and phone number just because one of your friends or acquaintances or casual business contacts was dumb enough to click "yes, I agree" and share the entire contents of their address book needs to have a full stop put to it. By law if necessary. This is the same thing as when people install the LinkedIn app on their phone and allow it to trawl through their entire contacts list. Even if you have no relationship with LinkedIn at all and refuse to use on general principles, surprise, now they know who you are.