When you log in for the wo'th time, be sure to change your password.

The best password is a random string of upper and lower case letters and digits, with symbols @ # $ % sprinkled in. If you do not use a password manager and cannot easily copy and paste, then use a password that you can remember but no one else can guess. Securing your account is important because misbehavior will result in account closure and eviction from the college, even if it was somewo who stole your password and impersonated you.