If the emoji on your screen match the recipient's, your connection is secure! While making a call, you will see four emoji on your mobile screen and so the recipient.
Telegram features an interesting key exchange mechanism to authenticate users and make sure their calls are even more secure: Users are required just to compare four emoji. However, the voice calling feature in Telegram supports end-to-end encryption by default, enabling users to secure their chats in a way that no one, not even Telegram or law enforcement, can intercept your calls.Įmoji-Based Secure Key Exchange Mechanism Unlike Signal or WhatsApp, Telegram does not support end-to-end encryption by default instead, it offers a 'Secret Chat' mode, which users have to enable manually, to completely secure their chats from prying eyes.
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