The abuser fakes my own email address as sender and sends me any email with following blackmail content. It contains the mentioned bitcoin address.
_x000D_
Hi, stranger!_x000D_
_x000D_
I hacked your device, because I sent you this message from your account._x000D_
If you have already changed your password, my malware will be intercepts it every time._x000D_
_x000D_
[...] _x000D_
_x000D_
In fact, I posted a malicious program on adults (pornography) of some websites, and you know that you visited these websites to enjoy_x000D_
(you know what I mean)._x000D_
_x000D_
What should you do?_x000D_
_x000D_
Well, I think $565 (USD dollars) is a fair price for our little secret._x000D_
You will make a bitcoin payment (if you dont know, look for how to buy bitcoins on Google)._x000D_
_x000D_
BTC Address: 1NDRk7tErLtSTMXLbK28UABQFDEH1vpEvV_x000D_
(This is CASE sensitive, please copy and paste it)_x000D_
_x000D_
Remarks:_x000D_
You have 2 days (48 hours) to pay. (I have a special code, and at the moment I know that you have read this email)._x000D_
_x000D_
[...]