Answer :
When performing, ntlm authentication, the information the web browser supply to FortiGate is the user's credentials (username and password).
What is NTLM authentication?
The full form of NTLM is Microsoft's Windows New Technology LAN Manager. It is a collection of security measures designed to verify users' identities and safeguard the privacy and integrity of their online behavior.
The information that is needed during this authentication is the password and the username.
Thus, the user's credentials are provided by the web browser to FortiGate during NTLM authentication (username and password).
To learn more about NTLM authentication, refer to the link:
https://brainly.com/question/17025987
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