Learn Editor: Update alerts-reference.md

Author: EyalGur74

articles/defender-for-cloud/alerts-reference.md

@@ -9,7 +9,8 @@ ai-usage: ai-assisted
 
 # Security alerts - a reference guide
 
-This article lists the security alerts you might get from Microsoft Defender for Cloud and any Microsoft Defender plans you enabled. The alerts shown in your environment depend on the resources and services you're protecting, and your customized configuration.
+This article lists the security alerts you might get from Microsoft Defender for Cloud and any Microsoft Defender plans you enabled. The alerts shown in your environment depend on the resources and services you're protecting, and your customized configuration.  
+* Please note: some of the recently added alerts powered by Microsoft threat intelligence and MDE may be undocumented.
 
 At the bottom of this page, there's a table describing the Microsoft Defender for Cloud kill chain aligned with version 9 of the [MITRE ATT&CK matrix](https://attack.mitre.org/versions/v9/).