They know my log in password and claim to have infected my computer . They want me to send $630 to a bitcoin wallet or they will release all information contained in my computer. The e mail sender used this e mail [email protected] to send this to me. What should I do ? Right now I am running a McAfee scan . How do I change my log in password but I don't want to do this until my computer is cleaned. Should I call a computer company to clean my computer from this infection by remote ?