If you're already logged in to MySCU, select the My Services tab up the top right of the screen.
On the MyServices page look for the Technology Services links, select Change My Password.
You will be prompted to login using your MySCU username and password. Scroll down to Change MySCU password (or click the link).
You will then be asked to input your current and new passwords.
Please note this does not change the password for MyEnrolment, nor your email/wireless/computer login account.