Enhance security best practices for Azure Storage

Added sections on when to use Storage Insights and Microsoft Defender for Storage, detailing their capabilities and security benefits.

Author: staleycyn

learn-pr/wwl-azure/configure-storage-security/includes/7-apply-best-practices.md

@@ -12,11 +12,25 @@
 
 - **Unified View**. It delivers a unified view of your Azure Storage services' performance, capacity, and availability, which is crucial for maintaining the security and efficiency of your storage accounts.
 
-### Security uses for Storage Insights
+### When to use Storage Insights
 
 - **Real-Time Monitoring**. Azure Storage Insights enables real-time monitoring of storage accounts, allowing you to track usage trends, monitor performance, and set up alerts for any anomalies.
 
 - **Security Auditing**. It aids in security auditing by providing comprehensive monitoring and detailed logs, which are essential for ensuring compliance and identifying any security issues.
 
 - **Health Analysis and Optimization**. The tool helps in health analysis and optimization of storage accounts, ensuring security and optimal performance. 
 
+### When to use Microsoft Defender for Storage
+
+While Storage Insights provides passive monitoring and historical analysis, Microsoft Defender for Storage offers proactive threat detection for active security threats.
+
+**Key capabilities**
+
+- **Malware scanning**. Automatically scans blob uploads for malware and viruses.
+  
+-	**Sensitive data threat detection**. Identifies when personally identifiable information (PII) or credentials are stored inappropriately.
+  
+-	**Activity-based threat detection**. Monitors for unusual access patterns, suspicious download volumes, and hash reputation analysis.
+  
+Microsoft Defender for Storage complements Storage Insights by providing active threat detection rather than just reactive monitoring and historical reporting.
+