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AC-04(14) Security or Privacy Policy Filter Constraints

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

Title

Security or Privacy Policy Filter Constraints

Control

When transferring information between different security domains, implement [Assignment: organization-defined security or privacy policy filters] requiring fully enumerated formats that restrict data structure and content.

Discussion

Data structure and content restrictions reduce the range of potential malicious or unsanctioned content in cross-domain transactions. Security or privacy policy filters that restrict data structures include restricting file sizes and field lengths. Data content policy filters include encoding formats for character sets, restricting character data fields to only contain alpha-numeric characters, prohibiting special characters, and validating schema structures.

Parameters

ac-4.14_prm_1: organization-defined security or privacy policy filters
ac-04.14_odp.01: security policy filters
ac-04.14_odp.02: privacy policy filters

STIG rules that implement this control 0

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