Not CUI Compliant
6 NIST 800-171 gaps detected. Not end-to-end encrypted by default. Foreign-owned. Explicitly prohibited by most agency policies. Cannot be used for any defense communications.
Telegram
by Telegram FZ-LLC
FedRAMP Status
Not FedRAMP Authorized
Impact Level
N/A
Category
Secure Messaging
Overview
Telegram is a messaging platform that is not end-to-end encrypted by default (only "secret chats" use E2E encryption). It is foreign-owned (UAE-based) and explicitly prohibited by most government agency policies for official business. It has no FedRAMP authorization, no audit controls, and no data residency guarantees.
CUI Risk Assessment
Not end-to-end encrypted by default. Foreign-owned. Explicitly prohibited by most agency policies. Cannot be used for any defense communications.
NIST 800-171 Violations
Using Telegram for CUI without FedRAMP authorization may violate these NIST 800-171 controls:
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Frequently Asked Questions
Is Telegram secure enough for defense communications?
No. Telegram is not end-to-end encrypted by default, is foreign-owned, and has no FedRAMP authorization. It is explicitly prohibited for government use by most agency policies.
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