Firstly, if you are using IE version 6 please move to something new now. This product is no longer even supported by Microsoft & soon it will just not load many popular websites.
If you are not using IE8 then there appears to be a flaw in the browser that allows other users to take information from your pc.
There is not yet a Microsoft patch to stop this, but there is a work around that you can download here & make your computer safe again..
http://blogs.zdnet.com/security/?p=5726&tag=nl.e589



