If you use safelists, I am posting this for you. There is a scam that is online where you (the intended victim) suddenly find yourself looking at an official looking webpage (It could look like it came from Microsoft or your Internet Provider) with a loud and repeating warning that your system has been infected with some sort of virus. Furthermore, it instructs you to call a number to have it removed.
DON'T CALL THAT NUMBER AND DON'T PANIC! It's all a scam! To clear the page and the annoying alarm hit the ESC key. To be on the safe side, You can log off and run your virus scanner just to make sure! (I can't emphasize the importance of keeping your virus scanners up to date).
It is important to remember that these pages are set up to get you to panic. To the uninformed, they are very effective.
The reason I post this is to warn everyone of these pages and what NOT to do. I ran across one a few days ago and then again two days ago when I was working through some ads in one of the safelists I belong to.
To Your Success!