# NIST SP 800-53 Rev. 5 SA-12(5) — Limitation Of Harm - Source: https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/sa-12-5-limitation-of-harm - Section: [Compliance](https://support.icompaas.com/compliance) › [NIST SP 800-53 Rev. 5 Controls](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5) › SA — System and Services Acquisition - Last updated: 2026-06-05 - Publisher: iCompaas, Inc. (https://www.icompaas.com) **NIST SP 800-53 Rev. 5**·Control `SA-12(5)`·high·Component: **System and Services Acquisition** ## What this control requires > Implement measures to prevent unauthorized information disclosure and limit harm from leakage in systems. This control supports the Information Leakage Protection System capability within the System and Services Acquisition family. > > — NIST SP 800-53 Rev. 5, Control SA-12(5) ### In plain English Implement measures to prevent unauthorized information disclosure and limit harm from leakage in systems. In practice, this means you can prove you policy management-level controls on a defined cadence. ## Why it matters SP 800-53 is the catalogue every U.S. federal authorisation (FedRAMP, FISMA, CMMC) and most regulated industries point at. A missing control surfaces as a Plan of Action & Milestones (POA&M) item that an Authorizing Official must approve before the Authority To Operate is granted or renewed. This control is rated **high**. Auditors expect a named owner, a remediation SLA, and a tooling artefact that evidences continuous operation. ## What an auditor looks for A 3PAO (FedRAMP) or Independent Assessor (NIST RMF) tests against NIST SP 800-53A assessment procedures. For each control they expect a documented implementation that addresses every assessment objective (Examine, Interview, Test) and an implementation summary in the System Security Plan. Within **System and Services Acquisition**, the assessor will trace your implementation back to the catalogue reference (Control SA-12(5)) and look for objective evidence on the latest two assessment cycles. ## How to implement #### Policy Management **Docs.** Keep each policy in version-controlled Markdown alongside the code that implements it; ship a signed PDF snapshot at each annual review and link the SHA into the SoA. ### Operational checklist - **Policy.** Document the trigger, the owner and the cadence. - **Information.** Document the trigger, the owner and the cadence. - **Protection.** Document the trigger, the owner and the cadence. - **Limit.** Document the trigger, the owner and the cadence. - **Unauthorized.** Document the trigger, the owner and the cadence. - **Scope:** management, information, system, protection, information disclosure, services, capability, systems. ## Evidence to collect - **Policy Document.** A signed and version-controlled policy / standard / procedure document. Signed policy or standard documents the safeguard. Focus: Limitation Of Harm. ## Common pitfalls - Policies that no engineer has read; the version in Confluence drifts from the version that's actually being enforced. ## How it maps to other frameworks Computed from shared tags, control component and key-operation subjects — handy when you are reconciling controls across an audit. - [**ISO/IEC 27001:2022 A.5.21** — Managing information security in the ICT supply chain](https://support.icompaas.com/compliance/iso-27001-2022/a-5-21-managing-information-security-in-the-ict-supply-chain) - [**HIPAA (45 CFR Part 164) 164.512(k)(6)** — Uses and disclosures for specialized government functions - Providing public benefits](https://support.icompaas.com/compliance/hipaa/164-512-k-6-uses-and-disclosures-for-specialized-government-functions-providing-public) - [**SOC 2 (2017 TSC) PI1.1** — Processing Objectives & Information](https://support.icompaas.com/compliance/soc-2-trust-services-criteria/pi1-1-processing-objectives-information) - [**NIST SP 800-171 Rev. 3 3.4.11** — Information Location](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3/3-4-11-information-location) ## Related controls in NIST SP 800-53 Rev. 5 - [**Control SA-4(12)** — Data Ownership](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/sa-4-12-data-ownership) - [**Control SA-4(4)** — Assignment Of Components To Systems](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/sa-4-4-assignment-of-components-to-systems) - [**Control SA-8(12)** — Hierarchical Protection](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/sa-8-12-hierarchical-protection) - [**Control PE-13(3)** — Automatic Fire Suppression](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/pe-13-3-automatic-fire-suppression) - [**Control SA-5(1)** — Functional Properties Of Security Controls](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/sa-5-1-functional-properties-of-security-controls) - [**Control SA-5(3)** — High-Level Design](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/sa-5-3-high-level-design) ## References - [NIST Computer Security Resource Center — NIST SP 800-53 Rev. 5](https://csrc.nist.gov/Projects/risk-management/sp800-53-controls) - Catalogue identifier: `Control SA-12(5)` Topics: governance riskpolicy management ## Related compliance guidance - [NIST SP 800-53 Rev. 5: a practical implementation guide for cloud teams](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5): Start with the full NIST SP 800-53 implementation guide — scope, roadmap, evidence and how the assessment runs. - [NIST SP 800-171 and CMMC: a practical guide to protecting CUI in the cloud](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3): If your obligation is protecting CUI in your own systems for a federal or defence contract, this derived subset — not the full catalogue — is the requirement. - [SOC 2 compliance: a practical implementation guide for cloud-native SaaS teams](https://support.icompaas.com/compliance/soc-2-trust-services-criteria): Most commercial SaaS already hold a SOC 2 Type 2, and FedRAMP 20x Class A is designed for providers that have one.