From the press release:
CAS is pleased to announce that a new version of myCAS ® will be released on August 24, 2009. The new version has an updated look, improved interface navigation, and new enhanced administrative features.
The myAccount section of myCAS has been enhanced and now offers the following new feature:
MyProfile – The MyProfile feature allows both Key Contacts and end users to quickly identify and update their own contact information. It allows them to change their password, add a security question for their password, and update their contact information.
To log in to myCAS, you should use your Key Contact support login ID and password.