How to pronounce 更改 in Cantonese (7 out of 8):

就要即刻更改密碼
You have to change the password right away.

Cantonese Sentence Breakdown

就要 zau6 jiu3
about to
即刻 zik1 hak1
immediately
更改 gang1 goi2
(verb) Change
密碼 mat6 maau6
password