Copilot Doesn’t Change Your Security Model | It Makes It Observable

Copilot Doesn’t Change Your Security Model It Makes It Observable Most conversations around AI start with capability. But enterprise reality starts with behavior. Microsoft 365 Copilot doesn’t introduce a new security universe — it reveals the one that already exists. Every response is shaped by identity Every retrieval is shaped by permission scope Every suggestion is shaped by data classification And every action leaves a narratable trail in telemetry That is the quiet shift. Security is no longer evaluated only at configuration time. It is continuously expressed through execution context . When Copilot answers, it is not thinking freely. It is operating inside a living trust boundary : Identity → Token → Graph Access → Label Policy → Audit Signal So the real question is no longer: Is AI safe? The real question becomes: Can your environment explain why the answer was allowed to exist? Because Copilot doesn’t change the security model. It makes the designed behavior observable. And on