From c78efbafd59b2826446b476403564d0eaacebc61 Mon Sep 17 00:00:00 2001 From: denisebmsft <18405051+denisebmsft@users.noreply.github.comgit> Date: Fri, 3 Dec 2021 09:13:53 -0800 Subject: [PATCH] Update create-wdac-deny-policy.md --- .../create-wdac-deny-policy.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/windows/security/threat-protection/windows-defender-application-control/create-wdac-deny-policy.md b/windows/security/threat-protection/windows-defender-application-control/create-wdac-deny-policy.md index b1e685d970..317703df02 100644 --- a/windows/security/threat-protection/windows-defender-application-control/create-wdac-deny-policy.md +++ b/windows/security/threat-protection/windows-defender-application-control/create-wdac-deny-policy.md @@ -101,7 +101,7 @@ Merge-CIPolicy -PolicyPaths $ DenyPolicy, $ExistingPolicy -OutputFilePath $Exist ## Multiple Policy Considerations If you are currently using [multiple policies] (deploy-multiple-windows-defender-application-control-policies.md) on a device, there are two options for integrating the blocklist into your policy set. -(Recommended) The first option is to keep the blocklist as its own policy isolated from your allow policies as it is easier to manage. Since applications need to be [allowed by both WDAC policies to run on the device](deploy-multiple-windows-defender-application-control-policies.md#base-and-supplemental-policy-interaction), you will need to add the Allow All rule(s) to your deny policy. This will not override the set of applications allowed by WDAC illustrated by the following example: +(Recommended) The first option is to keep the blocklist as its own policy isolated from your allow policies as it is easier to manage. Since applications need to be [allowed by both WDAC policies to run on the device](deploy-multiple-windows-defender-application-control-policies.md#base-and-supplemental-policy-interaction), you will need to add the Allow All rule(s) to your deny policy. This action will not override the set of applications allowed by WDAC illustrated by the following example: Policy 1 is an allowlist of Windows and Microsoft-signed applications. Policy 2 is our new deny policy that blocks MaliciousApp.exe with the Allow All rules. MaliciousApp.exe will be blocked since there is an explicit block rule in Policy 2. Windows and Microsoft applications will be allowed since there is an explicit allow rule in Policy 1 and Policy 2 (due to the Allow All rules). All other applications, if not Windows and Microsoft signed, for example, ExampleApp.exe, will not be allowed as this application is only trusted by Policy 2 (due to the Allow All rules) and not Policy 1.