Telegram Secret Chats provide end-to-end encryption, meaning only you and the recipient can read the messages. Not even Telegram's servers can decrypt them. Here's how to use this feature.
How to Start a Secret Chat
- Open a regular chat with the person
- Tap their name at the top to open their profile
- Tap the three-dot menu (or "More" on iOS)
- Select "Start Secret Chat"
The Secret Chat appears as a separate conversation with a lock icon. Your regular chat remains unchanged.
What Makes Secret Chats Different
- End-to-end encrypted — uses the MTProto 2.0 protocol
- Device-specific — only accessible on the device where you started it
- No cloud sync — messages aren't stored on Telegram's servers
- No forwarding — messages can't be forwarded to other chats
- Screenshot alerts — you get notified if the other person takes a screenshot
Self-Destructing Messages
In Secret Chats, you can set a self-destruct timer:
- Tap the timer icon in the message input area
- Choose a duration (1 second to 1 week)
- Messages disappear from both devices after the timer expires
The timer starts when the recipient reads the message, not when you send it.
Verifying Encryption
Each Secret Chat has a unique encryption key visualization — a pattern of squares. You can compare this with your chat partner (in person or over a call) to verify no one is intercepting your messages.
Limitations
- Only works for one-on-one chats (no group Secret Chats)
- Can't be accessed from another device
- Media may have restrictions on saving
For a broader view of Telegram's security model, read Is Telegram Safe? or check our privacy settings guide.