Security Tip: Disabling AutoComplete
Autocomplete is the function in your browser that allows your browser to fill in a form automatically for you. While a nice function and make your day a whole lot easier it unfortunately allows hackers and Trojans easier access to your information.
About.com had a more extensive notice about this at
To disable auto-complete in Internet Explorer Open the Internet Explorer browser, From the Internet Explorer menu, select 'Tools' , Select 'Internet Options' and Click 'Content'
To disable auto-complete in Firefox Open the Firefox browser, From the Firefox menu, select 'Tools', Select ' Options' and Click 'Privacy'