I read in this paper that microsoft's passport (required for hotmail and MSN) is not secure, it leakes information, ending up giving hackers the oppurtunity to get credit card information (and you can already imagine how your bank account looks like that afterwards
)
Just letting you know, if you need some extra security btw, you can reply, I'm working on some internet security and I have some great adresses for firewalls and extra internet security.