Doesn't this sound terrifying? Imagine if one of your REAL passwords are in the subject or the content of a threatening email sent to you, just like that?
What do you do? Panic? Pay?
Well, the truth is that those emails got their "information" from security breaches that affected BILLIONS of user accounts in many different services all over the world so...
Don't panic or pay!
Trust me, it happened to me, but there was a "but..." that made it very clear they did not have as much information