# NIST SP 800-171 Rev. 3 3.14.3 — Security Alerts, Advisories, and Directives - Source: https://support.icompaas.com/compliance/nist-sp-800-171-rev-3/3-14-3-security-alerts-advisories-and-directives - Section: [Compliance](https://support.icompaas.com/compliance) › [NIST SP 800-171 Rev. 3 Requirements](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3) › System and Information Integrity — §3.14 - Last updated: 2026-06-05 - Publisher: iCompaas, Inc. (https://www.icompaas.com) **NIST SP 800-171 Rev. 3**·Requirement `3.14.3`·high·Component: **System and Communications Protection** ## What this control requires > This control requires receiving system security alerts, advisories, and directives from external organizations and generating internal alerts, advisories, and directives as necessary. It ensures that the organization stays informed about security risks and can respond promptly to directives and advisories that could impact operations. This control supports the Security Alert Management capability within the System and Communications Protection (3.14) family. > > — NIST SP 800-171 Rev. 3, Requirement 3.14.3 ### In plain English This control requires receiving system security alerts, advisories, and directives from external organizations and generating internal alerts, advisories, and directives as necessary. In practice, this means you can prove you protection management-level controls on a defined cadence. ## Why it matters DoD contractors and their subcontractors must implement all 100 SP 800-171 requirements to keep CUI handling contracts. Gaps are scored against the SPRS scoring methodology; below a 110-point starting score, each unmet requirement deducts points and a below-threshold score can disqualify a bid. 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 C3PAO conducting a CMMC Level 2 assessment uses NIST SP 800-171A objectives. They expect a System Security Plan (SSP), Plan of Action & Milestones (POA&M) for any gaps, and objective evidence (configurations, ticket records, training records) for every requirement. Within **System and Communications Protection**, the assessor will trace your implementation back to the catalogue reference (Requirement 3.14.3) 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 - **Protection.** Document the trigger, the owner and the cadence. - **Impact.** Document the trigger, the owner and the cadence. - **System.** Document the trigger, the owner and the cadence. - **Risk.** Document the trigger, the owner and the cadence. - **Security.** Document the trigger, the owner and the cadence. - **Scope:** management, security, protection, communications protection, operations. ## Evidence to collect - **Policy Document.** A signed and version-controlled policy / standard / procedure document. Signed policy or standard documents the safeguard. Focus: Security Alerts, Advisories, and Directives. ## 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. - [**HIPAA (45 CFR Part 164) 164.312(e)(1)** — Transmission](https://support.icompaas.com/compliance/hipaa/164-312-e-1-transmission) - [**NIST SP 800-53 Rev. 5 SC-16(2)** — Anti-Spoofing Mechanisms](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/sc-16-2-anti-spoofing-mechanisms) - [**ISO/IEC 27001:2022 A.5.1** — Policies for information security](https://support.icompaas.com/compliance/iso-27001-2022/a-5-1-policies-for-information-security) - [**SOC 2 (2017 TSC) CC2.2** — Internal Communications](https://support.icompaas.com/compliance/soc-2-trust-services-criteria/cc2-2-internal-communications) - [**BSI C5:2020 SP-01** — Documentation, communication and provision of policies and instructions](https://support.icompaas.com/compliance/bsi-c5-2020/sp-01-documentation-communication-and-provision-of-policies-and-instructions) ## Related controls in NIST SP 800-171 Rev. 3 - [**Requirement 3.10.6** — Alternate Work Site](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3/3-10-6-alternate-work-site) - [**Requirement 3.15.1** — Policy and Procedures](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3/3-15-1-policy-and-procedures) - [**Requirement 3.13.15** — Session Authenticity](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3/3-13-15-session-authenticity) - [**Requirement 3.8.4** — Media Marking](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3/3-8-4-media-marking) - [**Requirement 3.14.8** — Information Management and Retention](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3/3-14-8-information-management-and-retention) - [**Requirement 3.12.1** — Security Assessment](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3/3-12-1-security-assessment) ## References - [NIST Computer Security Resource Center — NIST SP 800-171 Rev. 3](https://csrc.nist.gov/pubs/sp/800/171/r3/final) - Catalogue identifier: `Requirement 3.14.3` Topics: governance riskpolicy management ## Related compliance guidance - [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): Start with the full NIST SP 800-171 implementation guide — scope, roadmap, evidence and how the assessment runs. - [NIST SP 800-53 Rev. 5: a practical implementation guide for cloud teams](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5): The catalogue 800-171 is tailored from, and the basis of the FedRAMP Moderate baseline your cloud providers must meet for CUI. - [ISO/IEC 27001:2022 compliance: a practical implementation guide](https://support.icompaas.com/compliance/iso-27001-2022): If commercial customers ask for a certificate as well, most 800-171 controls can be evidenced once and mapped to Annex A.