# Document Security

Document security ensures that users can access only those documents for which they have the necessary permissions.

When a user logs on to a front-end application and is authenticated successfully, the IDOL Community component returns an encrypted security string to the front-end application. This string identifies the user and contains information about their group memberships. The front-end application must include this security string in every subsequent query it sends to IDOL.

When a user submits a query, the IDOL Content component compares the user's information with the permissions on each document. IDOL offers two ways of doing this, Mapped Security and Unmapped Security.

NOTE: Micro Focus strongly recommends using Mapped Security, because IDOL can return query responses significantly faster than when Unmapped Security is used.

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