What is the primary benefit of using IWA authentication realms?

The primary benefit of using Integrated Windows Authentication (IWA) authentication realms is the single sign-on experience they provide for users. When IWA is implemented, users can access web resources without having to repeatedly enter their credentials after their initial login to the network. This seamless experience is particularly advantageous in environments where employees move between different applications and resources frequently.

Since IWA leverages the existing Windows credentials of users, it helps streamline the authentication process and improves user convenience, ultimately enhancing productivity within the organization. Users can engage with applications and resources without interruptions, which would otherwise be caused by constant login prompts.

While enhanced security, access control management, and audit trail generation are important aspects of any authentication method, they are not the primary focus of IWA. Instead, those benefits are typical outcomes of proper authentication systems overall, regardless of the method used, whereas the standout feature of IWA is its ability to simplify authentication through single sign-on.