I’ve posted about IE6 vulnerabilities before. They mostly involved spoofing the address bar, which was in itself dangerous as it allowed scam artists to make their websites be at the address “www.visa.com” or other such honeypot locations. This vulnerability is far worse however: it makes command lines run on the user’s machine. Why is that bad? Because someone can make that command be “del C:WindowsSystem32*.dll” or something equally sensitive, causing Windows to crash… permanently. The solution? Switch browsers; stop using Internet Explorer.
More here
I’m happy to say i’ve stopped using IE as soon as I discovered FireFox – I highly recommend anyone (with sense) to get this free browser as soon as possible…Maybe to save your PC!