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MS CyRIGo follows NIST SP 800-171 which focuses on protecting the confidentiality of Controlled Unclassified Information (CUI) in nonfederal systems and organizations and recommends specific security requirements to achieve that objective.  

The security objective of confidentiality, the objectives of integrity and availability remain a high priority for organizations that are concerned with establishing and maintaining a comprehensive information security program.

While the primary purpose of SP 800-171 is to define requirements to protect the confidentiality of CUI, there is a close relationship between confidentiality and integrity since many of the underlying security mechanisms at the system level support both security objectives.  


NIST recommends audit records be generated at various levels of abstraction, including at the packet level as information traverses the network. Selecting the appropriate level of abstraction is a critical aspect of an audit logging capability and can facilitate the identification of root causes to problems. Organizations consider in the definition of event types, the logging necessary to cover related events such as the steps in distributed, transaction-based processes (e.g., processes that are distributed across multiple organizations) and actions that occur in service-oriented or cloudbased architectures.

Audit record content that may be necessary to satisfy this requirement includes time stamps, source and destination addresses, user or process identifiers, event descriptions, success or fail indications, filenames involved, and access control or flow control rules invoked. Event outcomes can include indicators of event success or failure and event-specific results (e.g., the security state of the system after the event occurred). Detailed information that organizations may consider in audit records includes full text recording of privileged commands or the individual identities of group account users. Organizations consider limiting the additional audit log information to only that information explicitly needed for specific audit requirements.

This facilitates the use of audit trails and audit logs by not including information