Authentication - Endorsement Questionnaire - Help

We are developing AAA game using unreal engine 5.3 with the Pixel Streaming feature to make the game available via company intranet for the employees to access via browser prompting with Windows Authentication. And the game will be hosted in Windows dedicated server. So for hosting, we have received Endorsement Questionnaire requirement from IT , since we are new to the Unreal Engine platform we are seeking your support to fill with your expert knowledge on this area. Below are the questions, please help us fill them.

o. What directory services does the software integrate with for authentication?
Answer:

p. Is authentication being performed over a secure connection? How is this being achieved?
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What are the events that trigger the software to request the user to authenticate / re-authenticate?
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q. What authentication controls are implemented in order to secure the user authentication
process?
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