Your password is the key to your account and all your files. It is therefore up to you to choose your password well, and not to share it with anyone. There are serious penalties for disclosing passwords -- your account may be suspended and you may be fined. See Why is my Account Access Denied? (section 1.6.2, page ) and The Online Yellow Form (section 1.6.3, page ) for more information on penalties.
Why should you care about the security of your account? Well, when you first registered your intent to take on the mantle of a CSE course, you acknowledged and accepted the conditions as presented by the Online Yellow Form (see section 1.6.3, page for more details). By doing so you promised not to disclose your password to another living soul, amongst other things! Apart from this, if someone other than yourself knows your password, they can use your account to read your files, delete your files, send offensive mail as you, attempt to disrupt the system and engage in other anti-social activities for which you will be blamed and held responsible. People who have your password can also use your print and IP quota allocations.
It is your responsibility to choose a secure password. Choosing an `unguessable' password is not really very hard. It just takes a little bit of imagination. Below are some simple rules and guidelines for choosing a secure password.Loc Van Huynh 2007-03-15