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Toast notifications to the lock screen must be turned off.


Overview

Finding ID Version Rule ID IA Controls Severity
V-36777 WN12-UC-000006 SV-51763r1_rule ECSC-1 Low
Description
Toast 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 2018-09-05

Details

Check Text ( C-46892r1_chk )
If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_CURRENT_USER
Registry Path: \SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\PushNotifications\

Value Name: NoToastApplicationNotificationOnLockScreen

Type: REG_DWORD
Value: 1
Fix Text (F-44838r1_fix)
Configure the policy value for User Configuration -> Administrative Templates -> Start Menu and Taskbar -> Notifications -> "Turn off toast notifications on the lock screen" to "Enabled".