@briankrebs Back in 2015, I registered a throwaway Facebook account, and did my best to isolate it from everything else about me: single-purpose email address, only connected over Tor from a browser in a dedicated virtual machine. I guess I succeeded, because Facebook spent the next year and a half harassing that account for a copy of my address book or any other sort of connection to other people.
@briankrebs And I do mean harassment: I've got nearly a thousand emails in my inbox telling me that I "have more friends on Facebook than you think" asking for a copy of my address book, an average of three a day.