I guarantee you that if you give me one hour and your computer, I can download a log of every keystroke you have ever entered on your PC. I can recreate every file that you ever downloaded. I can construct a report of every second that you used the computer – when you logged on until when you logged off. Just because you don’t know it exists does not mean that it does not.
Does that shake anyone up a bit? It should, at this time of year.