In modern operating systems and databases, including iOS, there are options to enforce password expiration. To set passwords to expire on an iPhone running the latest iOS version (iOS 16, as mentioned in the scenario), you can follow these steps:
1. Open the "Settings" app on your iPhone.
2. Scroll down and tap on "Passwords."
3. Select "Password Expiration" or a similar option, depending on the iOS version and interface.
4. Toggle the switch to enable password expiration.
5. Set the desired time period for password expiration. This could be weekly, monthly, or any specific time frame available in the settings.
6. Save the changes, and your passwords will now be set to expire according to the specified duration.
Please note that the exact steps and menu options may vary slightly depending on the iOS version, so it's always good to refer to the user manual or the official Apple documentation specific to your iPhone model and iOS version.