What is the recommended method for authenticating users in a corporate tool for the finance department using G Suite?

The recommended method for authenticating users in a corporate tool for the finance department using G Suite involves enabling Cloud Identity-Aware Proxy (IAP) and restricting access specifically to a Google Group that includes the users whose access needs to be verified within the application.

Using Cloud IAP provides a secure way to control access to applications that run on Google Cloud, leveraging an organization’s existing identity management infrastructure without needing to create separate user credentials. By enabling IAP, you can enforce a strong authentication mechanism; this allows only authenticated users to access the application based on their identity as recognized within G Suite.

Restricting access to a Google Group ensures that only authorized users within the finance department can access the sensitive financial tool, boosting security by limiting exposure to other users outside this group. It allows for easier management of user permissions since adding or removing users from the Google Group automatically updates their access to the application.

Thus, this method aligns well with best practices for managing user authentication and authorization within a corporate environment, where sensitive data is handled, and strong access control is critical.