Password and security settings are kept at the sign-in service.
Your password and the other security settings of your account belong to your sign-in account, not to this site, so they are changed there.
It opens in a new tab because the sign-in service does not allow its pages to be shown inside another site. You may be asked to sign in there.
What is kept where
- At the sign-in service: your password and account security settings. One account signs you in to every site that uses the service, so a change there applies to all of them.
- On DateNWed: the light or dark theme, switched from the header above this page, and whatever you create in this site's own apps.