Update 4-how-copilot-works.md

Author: rcaper

learn-pr/wwl-data-ai/explore-microsoft-copilot-business-users/includes/4-how-copilot-works.md

@@ -73,5 +73,14 @@ Copilot uses its large language model to generate a response, which might be sim
 
 The response can vary depending on context. This example is based on an actual response from Microsoft Copilot to the specified prompt.
 
-> [!NOTE]
+> [!IMPORTANT]
 > Copilot's responses are generated by AI, which can make mistakes. Be careful to validate responses to check for accuracy and relevance to your specific requirement.
+
+> [!NOTE]
+> **Behind the scenes**: 
+> 
+> Microsoft 365 Copilot works by combining secure access to your work data with intelligence that understands context and priorities. This behind‑the‑scenes foundation helps Copilot surface relevant information, connect related work, and provide more useful responses across Microsoft 365 apps. There are two key components that make this possible:
+> 
+> - **[Microsoft Graph](/graph/overview)** securely connects your Microsoft 365 data—such as emails, files, meetings, chats, and people—across apps and services. Graph enforces permissions and access rules, ensuring Copilot can only use information you are already allowed to see.
+> 
+> - **[Work IQ](https://www.microsoft.com/en-us/microsoft-365/blog/2025/11/18/microsoft-ignite-2025-copilot-and-agents-built-to-power-the-frontier-firm/?msockid=13b554c0ff596ffe0cbe4226fb596127#microsoft-365-copilot-with-work-iq-ai-built-for-work)** is the intelligence layer behind Microsoft 365 Copilot. It builds on Microsoft Graph data to understand context, remember work patterns, and connect related information across your work. Work IQ helps Copilot prioritize what is relevant, understand how work actually gets done, and provide more personalized, timely assistance.