Open System Preferences by clicking on Apple icon > System Preferences… > Accounts & Data > iCloud. Clicking Show All should show all configured accounts including yours if you have more than one configured 3rd party service like Google Drive etc syncing with icloud In this example we will use our work account as an example so click Next 5 times until you get to Account Type: 6th item down which is Work Account with its associated Password: 7th item down which is also Work Account password again..