If you are a Qld department user signing into iSee using your department credentials then iSee does not store a separate password for you and you need to reset your password using the standard department system.
If you are non-Qld department user that has had an account created for you, then your password can be reset by a departmen admin or you can reset it yourself by going to https://iseemanageqlddoe.iseevc.com and clicking on the 'I have forgotten my password' link as in the image below
Either password reset method will then send a temporary password to your email address.
Copy this temporary password and open iSeeHub (close and reopen if it is already open). Once iSeeHub is open, sign in with your email address and this temporary password.
When you click 'Launch iSee' this will trigger a password reset action where you can enter your new password.
Once your new password is entered, click 'Submit' and it will take you back to the sign in screen with your new credentials already entered.
Clicking 'Launch iSee' will now launch the iSee application using your new password.