You may be aware of the upsurge of sites claiming to be paypal so you will enter your bank details. Up till now they've been easy to spot as you can look in the URL. However, it looks like there's a bug in IE that will make the browser display any URL you want in the address bar and status bar !!

Full details here

http://www.secunia.com/advisories/10395/

Watch what you're putting your personal information into on the web. best practice is to take whatever the URL should be and reenter it to be sure you are opening up the correct site