While analyzing macOS's Transparency, Consent, and Control (TCC) system, I noticed an interesting architectural assumption.

Once a user grants an application permission (camera, microphone, files, etc.), macOS continues trusting that application unless the permission is manually revoked.

This model prioritizes usability but also introduces a subtle trust gap: if an application later becomes compromised, the system still assumes the original trust decision remains valid.

In other words, the operating system remembers the user's decision but does not continuously re-evaluate the trustworthiness of the application itself.

This made me think about how different operating systems handle persistent trust relationships.

For example, Windows has a similar challenge with legacy process trust relationships maintained for backward compatibility.

I'm curious how others think about this design tradeoff between usability and ongoing trust validation in OS security models.