Identify the contractual scope
Have the contract owner classify the proposed package and confirm which requirements apply.
CMMC · Defense supply chains
File sharing in a CMMC supplier assessment
Begin with the defense contract and the information the supplier is permitted to receive. Map the systems on both sides before testing how a technical package would move.
Confirm the receiving party
Identify the supplier contact, authorized use and system that will hold the file.
Trace the system boundary
Include exports, temporary copies and the recipient environment in the assessment discussion.
Check the release against the contract
Select a sample drawing set and record the release authority, system owner and approved handling conditions.
Federal contract information
Identify the information supplied or generated under the contract and confirm its handling conditions with the contract owner.
Controlled unclassified information
Confirm the designation and the assessed systems authorized to process the material before release.
Trace a supplier’s copy after delivery
Ask where the package lands, who administers that environment and how the project team will handle revisions.
Where will the information travel?
Include the export location, transfer service, receiving system and additional working copies in the diagram.
Who is authorized to receive it?
Identify the approved supplier and the individual assigned to review this release.
What evidence supports the decision?
Keep the release approval with the agreed system boundary, tested configuration and outstanding supplier questions.
Make supplier
responsibilities visible.
Include the external service in the assessment discussion. Review the applicable cloud requirements where CUI is processed, stored or transmitted, along with responsibility for security controls.
Review the route.
Then move the file.
Walk through a synthetic supplier exchange with MX. Bring the boundary questions your security team needs answered before selecting a service.
Explore your exchange requirementsQuestions for
your review.
Does MX provide CMMC certification?
No certification claim is made here. CMMC status concerns the assessed organization and information-system scope. Confirm MX service suitability, responsibilities and supporting evidence before use.
Does a CMMC requirement apply to every file?
Start with the contract and information classification. FCI and CUI have specific meanings; ordinary commercial information should not be classified by guesswork.
Can encrypted CUI be placed in any cloud service?
Do not assume encryption makes a service eligible. Review the applicable DoD cloud requirements and assessment scope with qualified personnel before transferring CUI.
Does this replace a NIST SP 800-171 review?
No. CMMC and the underlying security requirements serve related roles. Your team must establish which contractual requirements and assessment expectations apply to the actual system.