Signing in using a PIN must be turned off.

From Windows 10 Security Technical Implementation Guide

Part of WN10-CC-000135

Associated with: CCI-000381

SV-78127r1_rule Signing in using a PIN must be turned off.

Vulnerability discussion

Strong sign-on must be used to protect a system. The PIN feature is limited to 4 numbers and caches the domain password in the system vault.

Check content

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\System\ Value Name: AllowDomainPINLogon Value Type: REG_DWORD Value: 0

Fix text

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Logon >> "Turn on convenience PIN sign-in" to "Disabled".

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