RMS can be used to augment the security strategy for your organization by protecting documents using information rights management (IRM).
RMS allows individuals and administrators through IRM policies to specify access permissions to documents, workbooks, and presentations. This helps prevent sensitive information from being printed, forwarded, or copied by unauthorized people. After permission for a file has been restricted by using IRM, the access and usage restrictions are enforced no matter where the information is, because the permission to a file is stored in the document file itself.