From LG Android 5.x Interim Security Configuration Guide
Part of PP-MDF-991000
Associated with: CCI-000366
If the mobile operating system were to display notifications or calendar information on the lock screen, an adversary may be able to gather sensitive data without needing to Unlock the device. This adversary may use this gathered intelligence to plan future attacks and possibly a physical attack. By disabling notifications on the lock screen, this prevents sensitive data from being displayed openly on the device’s lock screen.
This validation procedure is performed on both the MDM Administration Console and the LG Android device. Check whether the appropriate setting is configured on the MDM Administration Console: 1. Ask the MDM administrator to display the "Allow Keyguard" setting in the MDM console. 2. Verify "All" is selected in the "Keyguard Disabled" screen. On the LG Android device: 1. Unlock the device 2. Add a calendar event for the current day on the device. 3. Lock the device. 4. Verify no notifications are displayed on the lockscreen of the LG device. If the "All" Keyguard Disabled setting is not disabled, or if the device is able to display notifications, this is a finding.
Configure the mobile device to disable the keyguard All setting. On the MDM Administration Console, disable "All" for the Keyguard Disabled setting.
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