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.