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App notifications on the lock screen must be turned off.


Overview

Finding ID Version Rule ID IA Controls Severity
V-36687 WN12-CC-000052 SV-51612r1_rule ECSC-1 Medium
Description
App notifications that are displayed on the lock screen could display sensitive information to unauthorized personnel. Turning off this feature will limit access to the information to a logged on user.
STIG Date
Windows Server 2012/2012 R2 Member Server Security Technical Implementation Guide 2018-10-30

Details

Check Text ( C-46863r1_chk )
If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \Software\Policies\Microsoft\Windows\System\

Value Name: DisableLockScreenAppNotifications

Type: REG_DWORD
Value: 1
Fix Text (F-44733r1_fix)
Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Logon -> "Turn off app notifications on the lock screen" to "Enabled".