For example
I'm getting one or two these most days (pause for obligatory jokes). They are rubbish, designed to trap the technologically ignorant. They are too lazy to even bother putting in a "Facebook pixel". But it's just so nasty, sending out thousands of emails with the hope terrifying a handful of individuals into paying them a lot of money.
The source of the email addresses are from websites that have been hacked, like Tumblr and Dropbox. Also one "fsc" - I hope that's not the financial services commission.