I recently received a warning from Microsoft telling me that my computer with trash and locked up if I did not call a specific 800 number immediately. A recording came on and would not turn off. I believe this was an attempt to hack my computer and unfortunately I called the number and allow them to it go on to my computer remotely. I was told I had a lot of issues that need to be fixed snd to call one of the three different numbers including Netgear, Ciso or a Geek number to do the repairs. I did not call the numbers but instead closed out all programs and shut off my computer. My computer appears to be operating as well as ever. Do I need to be worried.