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. To create one of these, go to Settings or a Chat Info page, click Edit > click the Profile Picture > select Sticker or Emoji. 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.
Turn Off Notifications for Individual Contacts 2b Telegram Messenger Tricks While you can receive/send files irrespective of their type and size, you can disable automatic media download and auto-play media to save mobile data. This way, you can also avoid downloading unnecessarily large files. If you prefer keeping the sensitive content of your chats limited to yourself and avoiding it from being intercepted by a hacker or the authorities in your country or region, this Telegram trick is for you. While normal chats in Telegram are user-to-server encrypted and cannot be read unless someone breaches Telegram’s servers, Secret Chats take it to a new level by providing user-to-user encryption. These chats are meant to be short-lived and not stored on Telegram’s servers. Since an update in 2019, Telegram has allowed users to delete messages sent by other users, across all devices. It’s a somewhat divisive feature. Having your messages deleted by someone else doesn’t feel very good. But if your conversation is between you and a person you trust, it’s another handy way to control your online communications.
Another thing to keep in mind is that selling your data isn’t at the core of Telegram’s business model. According to Telegram’s FAQ page, the company is funded by its founder and CEO Pavel Durov, not through advertising or data collection and sharing. If you're part of many Telegram chats—maybe you joined too many of the best Telegram channels—they can quickly become annoying. When this happens, you can always mute a chat without leaving it. This way, you can check it on your own terms instead of getting a ping for every new message. The company has redesigned the reaction panel, making it expandable. The app will also show reactions that a user frequently uses at the top. Premium Telegram Premium users can pick reactions from an infinite selection of custom emoji. Users can attach up to 3 reactions per message. These changes to reactions are currently available in groups and 1-on-1 chats. Group admins can control whether custom reactions may be used in their groups. This is a handy feature for users who want to save disk space. To access it, go to the “Settings”, “Data and Storage”, and then tap “Storage Usage”. You will find four options: keep media on your device for three days, one week, one month, or forever.
While it’s great to set a nice profile and win praise from your friends and loved ones, there are times when you might want to hide your profile from certain people. Fortunately, Telegram offers you the needed control over the visibility of your profile. Stop Being Added to Random Groups
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