# Security Overview

Micro Focus provides the software infrastructure that automates operations on unstructured information. This software infrastructure is based on IDOL Server.

Document security protects the information that you index into IDOL Server.

Your organization is likely to store information in many repositories. Many of these repositories have security features that apply permissions to files, so that they only authorized personnel can view them. Document security ensures that when you index information into IDOL Server, IDOL continues to enforce these permissions. In response to a query, IDOL returns only documents that a user is permitted to view.

IDOL includes the following features to protect your data:

- User authentication. At the front end, users must log on before they can query IDOL. IDOL can authenticate users against an existing directory service, such as Microsoft Active Directory.
- Document security. IDOL checks each document that is returned in response to a query. If the user who submitted the query does not have permission to view the document, the document is removed from the query results before the results are returned.
- Secure communications. You can encrypt the communications between ACI servers and any applications that use the Micro Focus IDOL ACI API.

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