| Review configuration settings to confirm the screen lock timeout is set to 15 minutes or less. |
This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.
Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.
In the management tool, verify the sum of the values assigned to "Maximum Auto-Lock time" and "Grace period for device lock" is between 1 and 15 minutes.
Alternatively, locate the text "maxGracePeriod" and "maxInactivity" and ensure the sum of their integer value is between 1 and 15 in the configuration profile (.mobileconfig file). For example:
Here, 5 + 5 = 10; this meets the requirement.
On the iPhone and iPad:
1. Open the Settings app.
2. Tap "General".
3. Tap "VPN & Device Management".
4. Tap the Configuration Profile from the iOS management tool containing the password policy.
5. Tap "Restrictions".
6. Tap "Passcode".
7. Verify the sum of the "Max grace period" and "Max inactivity" values is less than 15 minutes.
Note: On some iOS/iPadOS devices, it is not possible to have a sum of exactly 15. In these cases, the sum must be less than 15. A sum of 16 does not meet the requirement.
On the management server, if the sum of the "Max grace period" and "Max inactivity" values is not between 1 and 15 minutes in the iOS/iPadOS management tool or the sum of the values assigned to "maxGracePeriod" and "maxInactivity" is not between 1 and 15 minutes in the configuration profile, or if on the iPhone/iPad, the sum of the values assigned to "Max grace period" and "Max inactivity" is not between 1 and 15 minutes, this is a finding.