The email said: “We loaded our virus on your OS.Now I thiefted all personal data from your device. In addition I have some more evidence. The most amusing compromising which I have- its a videotape with your masturbation. Its obviously a scam because one thing I use Linux to surf the web and really don’t touch free porn sites. And this person finishes by saying:If you desire to erase all the evidence- pay me 640 usd in BTC(cryptocurrency).”]
Source: https://forums.malwarebytes.com/topic/230038-got-strange-threating-email/