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Toast notifications to the lock screen must be turned off.


Overview

Finding ID Version Rule ID IA Controls Severity
V-63839 WN10-UC-000015 SV-78329r1_rule 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 10 Security Technical Implementation Guide 2019-01-04

Details

Check Text ( C-64589r1_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

Value Type: REG_DWORD
Value: 1
Fix Text (F-69767r1_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".