The system must be configured to prevent the display of the last username on the logon screen.

From Windows 8 Security Technical Implementation Guide

Associated with IA controls: ECSC-1

SV-48164r1_rule The system must be configured to prevent the display of the last username on the logon screen.

Vulnerability discussion

Displaying the username of the last logged on user provides half of the userid/password equation that an unauthorized person would need to gain access. The username of the last user to log onto a system must not be displayed.

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Fix text

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Interactive logon: Do not display last user name" to "Enabled".

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