CAS - Why should I check the CAS URL before login?

Before entering your account name and password into the University's CAS login form, you should check that the web address of the page being displayed begins with

https://cas.ust.hk/cas/

The reason for checking the URL is to prevent a malicious person to fool you into supplying your account name and password by setting up a page that looks like the university's CAS login page. By routinely checking the URL of the login page will help to reduce the risk. This is especially important when logging in to services that you have not used before.