Another IE fail
pcmag.com
pcmag.com
Especially since it sounds like Microsoft is not going to fix this anytime soon.
This makes it sound like they're going to be able to get your password... No major website will be storing your password in a cookie. At worst the attacker will have your session id meaning they can log in as you until you log out of the website in question.
Let's clarify that ... "we suggest not using Internet Explorer to explore the internet."