I received my third call from this number today. A heavily accented man told me that my windows computer has been compromised with a malicious virus. I asked him if this was really true and he said "You think I am joking here". I assured him I wasn't and needed his help in deciding how to disinfect my computer. He then told me to hit the control button on my keyboard and another button. Unfortunately we were "disconnected" at that point. I'll never know what virus affected my windows computer - if I had a windows computer. Pity.