About This Architecture

Telegram Cloud Chat vs Secret Chat compares two fundamentally different encryption architectures within the Telegram platform. Cloud Chat routes messages through Telegram servers using client-to-server TLS/MTProto encryption, enabling multi-device sync and server-side storage, while Secret Chat implements true end-to-end encryption via Diffie-Hellman key exchange with no server storage and device-only keys. Cloud Chat prioritizes accessibility and feature richness—supporting bots, groups, and channels—but grants Telegram theoretical access to plaintext; Secret Chat maximizes privacy with maximum security but sacrifices multi-device support and server-side features. Understanding these trade-offs helps users choose the right mode for their security and usability needs. Fork and customize this diagram on Diagrams.so to illustrate encryption architecture comparisons in security training, privacy documentation, or threat modeling exercises.

People also ask

What is the difference between Telegram Cloud Chat and Secret Chat encryption?

Cloud Chat uses client-to-server TLS/MTProto encryption with messages stored on Telegram servers, enabling multi-device sync but allowing Telegram theoretical access to plaintext. Secret Chat implements true end-to-end encryption via Diffie-Hellman key exchange with no server storage and keys held only on user devices, maximizing privacy but limiting to single-device use.