In case anyone reading this was not already aware, in March there was a security breach at DreamWidth and a number of user names and passwords were compromised (
DW announcement here). Per their instructions, I immediately changed my DW password and also my LJ and AO3 passwords. Recently I got an email that correctly stated my (former) DW password, and then threatened various actions unless they got money (bitcoin) from me. Since that password is no longer valid, and I'm not concerned about the nonsense threats, I've deleted the email and don't intend to do anything.
BUT it's proof that the stolen data has been shared, and that my account was one of the ones compromised. So, if you have not yet changed your DW password, you should do so immediately, and if you use that same password on any other social media or other accounts, you should change those also, to something different.