BaselineWatch
Desk

AC-04(06) Metadata

NIST SP 800-53 (controls) 5.2.0 against 5.2.0
All changes in this version
unchanged AC part of AC-4

Title

Metadata

Control

Enforce information flow control based on [Assignment: metadata].

Discussion

Metadata is information that describes the characteristics of data. Metadata can include structural metadata describing data structures or descriptive metadata describing data content. Enforcement of allowed information flows based on metadata enables simpler and more effective flow control. Organizations consider the trustworthiness of metadata regarding data accuracy (i.e., knowledge that the metadata values are correct with respect to the data), data integrity (i.e., protecting against unauthorized changes to metadata tags), and the binding of metadata to the data payload (i.e., employing sufficiently strong binding techniques with appropriate assurance).

Parameters

ac-04.06_odp: metadata

Related controls

ac-16, si-7

Assessment objective

AC-04(06) information flow control enforcement is based on [Assignment: metadata].

STIG rules that implement this control 0

No followed STIG rule cites a CCI indexed to this control (CCI list 2026-07-14).