Which is a method to enhance the security of web maps in ArcGIS Enterprise?

Applying question authentication before granting access to the map is a critical method for enhancing the security of web maps in ArcGIS Enterprise. This approach involves verifying the identity of users before they can access sensitive or proprietary geographic information. By implementing authentication mechanisms, such as requiring users to log in or providing a security question, only verified users will have access to the content of the web maps. This ensures a level of control over who can view or interact with the map data, thereby protecting it from unauthorized access.

In contrast, using public access for all users exposes the web maps to anyone on the internet, which can lead to data breaches and misuse of sensitive information. Limiting maps to visual-only representation without data may create a barrier to data privacy, but it does not provide sufficient protection against users trying to access further details. Randomizing URLs for map access can add a layer of obscurity, but it does not fundamentally secure the data, as it does not prevent unauthorized users from accessing a map if they discover the URL. Therefore, employing question authentication is a comprehensive strategy that directly addresses user validation and access control, which are vital for maintaining the security of web maps.