I’ve found pics on the web that I took but did NOT put them on the web.
Read FB and Linkedin’s privacy policy, specifically paragraphs 3 & 4 (as of a few years ago), when you log in to them, you give them the right to ANYTHING on your computer that they can access.
That’s how they send emails to EVERYONE on your email contact list. BEYOND CREEPY.
That is sad... and once they are on the net.. you can’t “delete” :/