Update attack-simulation-training-training-modules.md

Updating the documentation to account for upcoming deprecation of SANS training content (12 modules that form part of SANS training content).

Author: VipulMSFT

defender-office-365/attack-simulation-training-training-modules.md

@@ -25,6 +25,21 @@ In Attack simulation training in Microsoft 365 E5 or Microsoft Defender for Offi
 
 To see the available Training modules, open the Microsoft Defender portal at <https://security.microsoft.com>, go to **Email & collaboration** \> **Attack simulation training** \> **Content library** tab \> and then select **Training modules**. Or, to go directly to the **Content library** tab where you can select **Training modules**, use <https://security.microsoft.com/attacksimulator?viewid=contentlibrary>.
 
+> [!IMPORTANT]
+> The following 12 modules will be retired from the training catalog by August 20, 2025. Admins will no longer be able to assign these trainings after August 20, 2025. 
+>
+> - Security Essentials for IT Administrators 01: Introduction and Overview
+> - Security Essentials for IT Administrators 02: Core Principles of Cyber Security
+> - Security Essentials for IT Administrators 03: Security Program Management
+> - Security Essentials for IT Administrators 04: Security Maintenance and Hygiene
+> - Security Essentials for IT Administrators 05: Authentication and Authorization
+> - Security Essentials for IT Administrators 06: Data Protection
+> - Security Essentials for IT Administrators 07: Sample Attacks
+> - Security Essentials for IT Administrators 08: Attack Scenario
+> - Security Essentials for IT Administrators 10: Securing Cloud Computing Environments
+> - Security Essentials for IT Administrators 11: Securing Web Servers
+> - Security Essentials for IT Administrators 12: Attack Case Study, Supply Chain Attacks
+
 > [!TIP]
 > The following training modules for QR codes are available:
 >