Toast notifications to the lock screen must be turned off.

From Windows 8/8.1 Security Technical Implementation Guide

Part of WINUC-000006

Associated with IA controls: ECSC-1

Associated with: CCI-000381

SV-48465r2_rule Toast notifications to the lock screen must be turned off.

Vulnerability discussion

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.

Check content

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_CURRENT_USER Subkey: \SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\PushNotifications\ Value Name: NoToastApplicationNotificationOnLockScreen Type: REG_DWORD Value: 1

Fix text

Configure the policy value for User Configuration -> Administrative Templates -> Start Menu and Taskbar -> Notifications -> "Turn off toast notifications on the lock screen" to "Enabled".

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