diff --git a/windows/threat-protection/windows-defender-exploit-guard/customize-controlled-folders-exploit-guard.md b/windows/threat-protection/windows-defender-exploit-guard/customize-controlled-folders-exploit-guard.md
index 58f8cc2bce..12a69f22d9 100644
--- a/windows/threat-protection/windows-defender-exploit-guard/customize-controlled-folders-exploit-guard.md
+++ b/windows/threat-protection/windows-defender-exploit-guard/customize-controlled-folders-exploit-guard.md
@@ -45,6 +45,11 @@ This topic describes how to customize the following settings of the Controlled f
 - [Add additional folders to be protected](#protect-additional-folders)
 - [Add apps that should be allowed to access protected folders](#allow-specifc-apps-to-make-changes-to-controlled-folders)
 
+>[!WARNING]
+>Controlled folder access is a new technology that monitors apps for activities that may be malicious. This means it might block a legitimate app from making legitimate changes to your files.
+>This may impact your organization's productivity, so you may want to consider running the feature in [audit mode](audit-windows-defender-exploit-guard.md) to fully assess the feature's impact.
+
+
  ## Protect additional folders
 
 Controlled folder access applies to a number of system folders and default locations, including folders such as Documents, Pictures, Movies, and Desktop.