I wrote a simple program to hide the build-in camera by entitlement restriction as DTS suggested in the post: https://developer.apple.com/forums//thread/784511?answerId=839753022#839753022
But the program failed as the error message: Fail to open service: 0xe00002e6: Caller is not entitled to connect to EndpointSecurity.
How can I apply for the entitlement to run the program? Is there any other solution to resolve hide build-in camera?