How does Copilot respect security permissions to ensure that people get access to just the information they can see, or that they should be able to see?

The permissions model within your Microsoft 365 tenant will ensure that data will not unintentionally leak between users and groups. Copilot presents only data that each individual can access using the same underlying controls for data access used in other Microsoft 365 services. Copilot is integrated into Microsoft 365 and automatically inherits all your company’s valuable security, compliance, and privacy policies and processes.