That's interesting that you experienced this a few months ago. I just hope that you're protected in your internet research because I can imagine that you must visit sites that expose your computer to vulnerabilities. There have been a lot more cyber attacks over the past few days. Since we know this is one tactic those crazy SOBs are using to try and destabalize our economy and wreak havoc, I hope that being aware of these incidents will increase our ability to counter them.
IMs are a big vulnerability for personal computer access.
I had many of files hidden on my computer before.