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To lock your messages, go to “Settings”, “Privacy and Security” and tap on “Passcode Lock”. You will be asked to set a four-digit passcode and confirm it. Once you do that, you will find additional options to “unlock the app with fingerprint” and “auto-lock” it after a specific duration. Adaptive (Android) or Automatic (iOS): The mode will automatically switch based on the light level around you; you can define the threshold. Message corners

Let’s say you have enabled the “Slow Mode” and set an interval of 1 minute. Now members in the group can only send one message per minute. A timer will show them how long they have to wait before sending the next message. There's also a hidden menu that appears when you long-press on the Send button. Choose Schedule message to delay sending until a time in the future. You can also tap Send When Online to send the message when the other person is next active on Telegram. \Telegram Enable Proxy See also: How to delete a Telegram account

Bot API: lets you build programs that use Telegram messages for an interface. You don’t need to have knowledge of MTProto encryption protocol. The intermediary server will handle all communication and encryption with Telegram API for you. Public groups can now enable join requests – allowing group admins to review new members before approving them to write in the chat. Users who open the group can tap Request to Join, adding their request to a list that only admins can access. How does Telegram work? Share My Live Location continually updates that chat for the period you specify. Be careful about giving away too much information when using this.

For maximum privacy, you can create secret chats that use end-to-end encryption. These aren't stored on Telegram's servers, so you can only access them with your specific phone. If one party deletes a message, it disappears on both devices. And you can specify a self-destruct period for all media if you like. Never Share With: Hide your profile photo from specific people.