Not CUI Compliant
4 NIST 800-171 gaps detected. Not FedRAMP authorized. Using this tool for CUI creates compliance violations under NIST 800-171 and DFARS 252.204-7012.
WeTransfer
by WeTransfer
FedRAMP Status
Not FedRAMP Authorized
Impact Level
N/A
Category
File Sharing
Overview
WeTransfer is a commercial file transfer service for sending large files via temporary links. It is not FedRAMP authorized and offers no access controls suitable for CUI protection.
CUI Risk Assessment
Not FedRAMP authorized. Using this tool for CUI creates compliance violations under NIST 800-171 and DFARS 252.204-7012.
Deployment & Architecture
Deployment Model: Cloud SaaS (vendor-hosted)
WeTransfer has no FedRAMP authorization on record. DFARS 252.204-7012(b)(2)(ii)(D) requires an external cloud service provider to meet security requirements equivalent to the FedRAMP Moderate baseline — an authorization is the straightforward way to show that, but it is not the only one. Without one, the burden is on you to establish, document, and defend equivalency, and to meet the clause's incident-reporting and media-preservation obligations. Most contractors find an authorized alternative cheaper than carrying that burden.
Migration Checklist
- 1ISSO must immediately audit all WeTransfer usage logs and identify CUI data previously transmitted through the service for potential spillage reporting.
- 2Contracts officer must notify DCMA within 72 hours of any confirmed CUI transmission via WeTransfer per DFARS 252.204-7012 requirements.
- 3System administrator must block WeTransfer domains at the network firewall and web proxy to prevent future unauthorized usage.
- 4ISSO must remove WeTransfer from the system inventory in the SSP and update authorization boundary diagrams to reflect the service removal.
- 5Legal counsel must assess potential contract violations and coordinate with government customers regarding any CUI exposure incidents.
- 6Training manager must conduct mandatory refresher training on approved CUI sharing methods and update security awareness materials.
- 7ISSO must create POA&M entries documenting WeTransfer remediation activities and timeline for implementing compliant alternatives.
- 8System administrator must deploy approved file sharing alternatives such as SAFE or configure existing Microsoft 365 GCC High capabilities.
- 9ISSO must update incident response procedures to include file sharing service violations as a CUI spillage scenario requiring immediate reporting.
NIST 800-171 Violations
Using WeTransfer for CUI without FedRAMP authorization may violate these NIST 800-171 controls:
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FedRAMP Compliant Alternatives
Frequently Asked Questions
Is WeTransfer FedRAMP authorized?
No. WeTransfer is not FedRAMP authorized and is based in the Netherlands with no US government compliance certifications.
Can I use WeTransfer with CUI?
No. WeTransfer provides no persistent access controls or audit logging. Sending CUI via WeTransfer violates NIST 800-171 and DFARS requirements.
What is a compliant alternative to WeTransfer?
SharePoint GCC High and OneDrive GCC High provide FedRAMP High authorized file sharing with full access controls and audit trails.
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