These people call from unrestricted numbers saying that they are receiving a signal from your computer alerting them that someone has access to your computer. They want you to give them access to your computer so they can "fix" the issue. They have started harassing me up to 5 times a day. I have caught on and now they are claiming to give you a refund if you have previously paid them to fix the issue (if you fell for it the first time), but need access to your computer again ironically enough. I got very angry and very clearly told them that I did not want any more phone calls and he proceeded to argue and call my bluff about getting the police involved if it did not stop. He said "go ahead, yes, get the police involved, I don’t care"