What type of information is not available for endpoints if FortiClient is not installed?

Without FortiClient installed on endpoints, several types of information become unavailable for effective monitoring and management. In this context, user information is specifically tied to the capabilities that FortiClient offers. When FortiClient is active on an endpoint, it collects and transmits localized user data, including user profiles, authentication details, and specific user activity on that device. This data is crucial for establishing security policies and ensuring that users adhere to organizational standards.

Without the presence of FortiClient, while you might still glean details like the device's IP address, network latency, and traffic volume through other means, the rich, contextual data about the user associated with the endpoint becomes inaccessible. This absence compromises the ability to enforce user-based policies or to correlate user actions with the security posture of the network, highlighting the importance of having FortiClient for complete endpoint visibility and management.