Outlook must be configured not to prompt users to choose security settings if default settings fail.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-228473SRG-APP-000516DTOO315SV-228473r508021_rule2022-03-112

Description

Check to prompt the user to choose security settings if default settings fail; uncheck to automatically select.

ℹ️ Check

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2016 -> Security "Prompt user to choose security settings if default settings fail" is set to "Disabled". Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\16.0\outlook\security Criteria: If the value ForceDefaultProfile is REG_DWORD = 0, this is not a finding.

✔️ Fix

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2016 -> Security "Prompt user to choose security settings if default settings fail" to "Disabled".