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

From Microsoft Outlook 2016 Security Technical Implementation Guide

Associated with: CCI-000366

SV-85895r1_rule Outlook must be configured not to prompt users to choose security settings if default settings fail.

Vulnerability discussion

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

Check content

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 text

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".

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