While using my comrade_abe tool I discovered Edge encrypts Copilot data through the same ABE COM service as browser data. 3 dedicated Copilot interfaces (IElevatorCopilot, IElevatorCopilotDev, IElevatorCopilotInternal) all inherit EncryptData/DecryptData from IElevator. Interesting security boundary to explore further. 🤔
FYI: COMrade ABE is a simple tool to automatically discover & analyze App-Bound Encryption (ABE) COM interfaces in e.g., Chrome, Edge, and Brave. Maps inheritance chains, finds encryption methods and generates reverse engineering stubs.