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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. The reason for this is Telegram’s enhanced use of the cloud. Essentially, it stores all of your messages and photos on a secure server. This means you can access them from any connected device, making Telegram much more multi-platform friendly than other chat apps like WhatsApp. To do this, choose the items you want to send and tap on the three-dot menu. Now select “send without compression”, and you are good to go.

Telegram is a free instant-app service founded by people behind VK, which is Russia’s biggest social networking site, primarily focused on speed and user privacy. Initially released in August 2013, the app has managed to get over 400 million monthly active users. Telegram Messenger Tricks Security Telegram Bots

If your device is stolen or someone took it, and you don’t want him/her to see the messages in your chat window, then you can simply terminate all the active sessions with just one click using your Mac, Desktop, Linux or Web client. Self-destruct is a popular feature on Telegram, but it has been limited to the separate “Secret Chat” option only. However, with the recent update, now you can self-destruct media like photos and videos on normal chats too. Just select a photo or video and then tap on the “timer” button. Now, you can choose the time after which the media will be deleted from everywhere. Premium 4 GB Uploads Furthermore, you can view how much Mobile or WiFi data you have consumed so far. Just tapping on “Data Usage”, and it will show you “Bytes sent” and “Bytes received” of individual file types.

Telegram has a unique feature called Channels that allow you to broadcast messages to large audiences. Unlike Groups, Telegram Channels can have an unlimited amount of subscribers, and only admins have the right to post content. To schedule and send silent messages, users can simply type out their messages, but long tap on the send button instead of simply pressing it. This will show you the schedule and silent message options.