"Hello! I am a hacker who has access to your operating system. I also have full access to your account. I've been watching you for a few months now.
The fact is that you were infected with malware through an adult site that
you visited. If you are not familiar with this, I will explain..." and blah blah blah. They want $500 in bitcoin, or they'll "release a video". Just a scam though.
