PKU2U authentication using online identities will be prevented.

From Windows Server 2008 R2 Member Server Security Technical Implementation Guide

Part of PKU2U Online Identities Authentication

Associated with IA controls: ECSC-1

SV-32447r1_rule PKU2U authentication using online identities will be prevented.

Vulnerability discussion

This setting prevents online identities from being used by PKU2U, which is a peer-to-peer authentication protocol. Authentication will be centrally managed with Windows user accounts.

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Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network Security: Allow PKU2U authentication requests to this computer to use online identities” to “Disabled”.

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