The people who can access the web server can easily read any of the data you send/receive. That includes your passwords, private messages, browsing habits etc.

The thing is, the admins normally have better things to do than to sniff through your private information. Nothing you use on the internet is ever truly private unless you own the entire infrastructure. Streamyx, hotmail, gmail, google etc have loads of data on you too.

So those of you who are paranoid, you might want to stop using the internet