Open Telegram app -> Settings -> Privacy and Security. The encryption is based on 2048-bit RSA encryption, 256-bit symmetric AES encryption, and Diffie–Hellman secure key exchange. Hopefully, I have listed enough Telegram features to help you understand why the Telegram app is so popular and secure.
In order to protect your personal information, Telegram automatically terminates your old sessions after 6 months. However, you can choose to get rid of the old sessions sooner in order to further boost security. 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. Telegram gives you an option where you can select who can see your last seen time. To configure this, go to “Settings”, “Privacy and Security” and then tap on “Last Seen & Online”. You can share it with everybody, or people in your contact list, or nobody, or add exceptions like “never share with” XYZ. While you can send uncompressed media in other messaging apps, you have to convert it in another format like EXE or PDF. Telegram, however, allows you to send uncompressed video and images directly (without converting them into another format). It saves you a lot of trouble.
Even better, thanks to Cloud Themes, you can share your custom themes (or try themes created by others) using a link. If the owner updates the theme, everyone using it through that link will see the changes. Long-press on a theme and choose Share to make it available to others. Custom Theme Your Telegram 1b Telegram Messenger Tricks What is Telegram? Just like we can share videos with a pre-defined timestamp of YouTube videos, we can do the same thing on Telegram as well. For example, if you are sending a long video and want the user to play it from a specific timestamp say, 1:20, you can just type check the reaction at 1:20 in the video caption. Now when the user taps on the highlighted 1:20 link, the video plays from that particular timestamp. This is a helpful tip for users who send videos on Telegram regularly.
To create one of these, go to Settings or a Chat Info page, click Edit > click the Profile Picture > select Sticker or Emoji. Under the Other section, tap Open Links in and then choose a preferred browser from the list.
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