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REC 0001DEFINITIONsha3-256671233a6ef0590eea482b5a19a323ca943ce131460d2b2593816b5a398e47b7cprev:462c466dcac6

CUI stands for Controlled Unclassified Information.

Controlled Unclassified Information (CUI) is the category of sensitive-but-unclassified information that drives most CMMC requirements. If a defense contract involves CUI, the contractor generally needs CMMC Level 2 rather than Level 1.

CUI includes things like technical drawings, specifications, engineering data, and program information marked as controlled. Simply receiving or forwarding an email containing CUI puts that system in scope.

Correctly identifying whether you handle CUI — and which of the 80+ CUI categories applies — determines your assessment path (self-assessment vs. third-party C3PAO) and the boundary of your assessment.

REC 0002RELATED RECORDSsha3-256d468682448aaabc8fd6bbc4777b2d1121573f846917a172ea21b122e789beba8prev:671233a6ef05

Related records

Guides and articles describe the work. The evidence that work produces is described in three proof pages and one architecture page.

proof.state
Proof of State. What the environment was, as of a date someone else picks: point-in-time records, content hashed and chained.
proof.change
Proof of Change. Who or what altered the environment, under what authority, with before and after state hashes.
proof.agency
Proof of Agency. What a machine was permitted to do before it acted, what it did, and what would have stopped it.
architecture
Architecture. How the chain is built and where it lives: inside your tenant, with no egress of evidence.

Related terms and reading

  1. FCI: Federal Contract InformationFCI is information provided by or generated for the government under a contract that is not intended for public release: the trigger for CMMC Level 1.
  2. NIST SP 800-171NIST SP 800-171 is the federal standard of 110 security controls for protecting CUI in non-federal systems: the technical basis of CMMC Level 2.
  3. C3PAO: CMMC Third-Party Assessment OrganizationA C3PAO is an organization authorized by the Cyber AB to conduct official CMMC Level 2 certification assessments.
  4. CMMC Level 2 Requirements: Complete Guide

Know the term. Then see the record behind it.

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REC 0000HEAD462c466dcac6415a1dcae287
REC 0001DEFINITION671233a6ef05462c466dcac6
REC 0002RELATED RECORDSd468682448aa671233a6ef05

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