diff --git a/windows/security/book/conclusion.md b/windows/security/book/conclusion.md
index 858cdd866c..f784c16252 100644
--- a/windows/security/book/conclusion.md
+++ b/windows/security/book/conclusion.md
@@ -45,6 +45,7 @@ Enhanced:
 - Windows Presence sensing
 - Credential guard
 - Local Security Authority
+- Microsoft Authenticator
 
 ## Document revision history