What is "simple access token authorization mechanism"

You explain at 6:08 that "In iOS and iPadOS 15, we used a simple access token authorization mechanism to allow the MDM server to verify the identity of users. What exactly was the "simple access token authorization mechanism"?

I would like to know the outline of the mechanism. If you have a URL that explains the mechanism, please send it to us.

Thank you,

What is "simple access token authorization mechanism"
 
 
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