Got an email, l saying they have hacked in to my desktop and camera, and are threatening to spread some sort of video to my messenger contacts - if I do not pay the bitcoin ransom.

actually, i actually installed a malware on the adult streaming (pornographic material) web-site and guess what, you visited this web site to have fun (you know what i mean). When you were watching video clips, your web browser initiated operating as a Remote Desktop having a key logger which gave me access to your display as well as webcam. immediately after that, my software program collected your complete contacts from your Messenger, FB, and email . Next i made a double-screen video. First part shows the video you were viewing (you have a fine taste rofl), and 2nd part displays the view of your cam, and its you.