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To lock a chat go to Settings->Privacy and Security->Passcode Lock and enable it. Once you create a passcode and enable it, you will be able to lock and unlock your chats by tapping on the lock icon at the top right of the app. Telegram Sending Options {}

Now, tap Profile Photo. Now, you have three options: Tap your profile picture here to see everything you've uploaded in the past. You can scroll across them; tap the Set as Main Photo option that appears on the top-right menu (as three dots on Android or Edit on iPhone) to set an older image as your current profile picture. Telegram Privacy Choices delete sender's message

Finally, if you don't want to disturb the other person, choose Send without sound to silently deliver the message to the other party without them getting a notification. Slow Mode Save Messages You Want to Access Anywhere Read: 7 Best Facebook Alternatives That Keep Your Data Private | 2020 Edition

Is Telegram safe to use? You can download the app for free from the Google Play Store via the button below — give it a try with a pal if you’re keen. The best way to decide if it’s right for you is to try it for yourself.