Got a call on my landline (what do you expect from an old fogey like me) at 2017-07-13.17:30 with this number on caller ID. Woman with accent (Eastern European/Russian?) telling me she was from "windows support" and had been receiving messages from my computer indicating it is infected. I replied, "Yes, and your check's in the mail and there's another F train right behind this one. Please don't call this number again."