Telegram Secret Chats: End-to-End Encrypted Messaging Guide
Secret Chats are Telegram's end-to-end encrypted messaging feature. Unlike regular chats, messages in Secret Chats can only be read on the two devices involved in the conversation — not even Telegram can access them.
How to Start a Secret Chat
- Open the profile of the person you want to chat with
- Tap the three-dot menu (Android) or "..." (iOS)
- Select "Start Secret Chat"
- The chat opens with a lock icon and green encryption indicator
Note: Secret Chats can only be started on mobile devices (Android/iOS). They are not available on Telegram Desktop or Web.
Key Features
End-to-End Encryption
- Uses the MTProto 2.0 protocol with 256-bit symmetric AES encryption
- Encryption keys are stored only on the two devices — Telegram servers have no access
- You can verify encryption by comparing the key visualization with your chat partner
Self-Destructing Messages
- Tap the clock icon in the message input area to set a self-destruct timer
- Options: 1 second to 1 week
- The timer starts when the recipient opens the message
- After the timer expires, the message is deleted from both devices
Screenshot Alerts
- If either person takes a screenshot, the other person is notified
- On iOS, this works for the entire chat
- On some Android devices, screenshots may be blocked entirely
No Forwarding
- Messages in Secret Chats cannot be forwarded to other chats
- This prevents content from being shared outside the private conversation
Secret Chats vs Regular Chats
| Feature | Regular Chat | Secret Chat |
|---|---|---|
| Encryption | Client-server | End-to-end |
| Cloud sync | Yes | No (device only) |
| Multi-device | Yes | No |
| Self-destruct | Optional | Built-in |
| Forwarding | Allowed | Blocked |
| Screenshot alert | No | Yes |
Limitations
- Device-bound — Secret Chats exist only on the device where they were created. They do not sync to other devices or Telegram Desktop
- No group support — Secret Chats are 1-on-1 only
- Mobile only — Cannot be initiated from Desktop or Web clients
- No cloud backup — If you lose your device, the Secret Chat history is lost
When to Use Secret Chats
- Sharing sensitive personal information (passwords, financial details)
- Confidential business discussions
- Any conversation where you want guaranteed privacy from third parties
- Situations where you want messages to automatically disappear
For broader account security, see our Privacy and Security Settings guide. Need your Telegram User ID for bot integrations? Find it here.
Frequently Asked Questions
Are regular Telegram chats encrypted?
Yes, but with client-server encryption — Telegram encrypts messages in transit and stores them encrypted on their servers. However, Telegram holds the decryption keys. Secret Chats use end-to-end encryption where only the two participants can decrypt messages.
Can I use Secret Chats on Desktop?
No. Secret Chats can only be started and used on mobile devices (Android and iOS). This is because Secret Chats are tied to a specific device and do not sync across devices.
Do self-destructing messages really get deleted?
Yes, from both devices. However, the recipient could theoretically photograph their screen before the message self-destructs, or use a secondary device to capture it. Telegram notifies you of screenshots but cannot prevent all forms of capture.
Why does Telegram not use end-to-end encryption by default?
Telegram prioritizes cloud sync and multi-device access for regular chats, which requires server-side access to messages. End-to-end encryption prevents cloud features like syncing chats across devices, searching message history from any device, and seamless device switching.