Custom themes The encryption is based on 2048-bit RSA encryption, 256-bit symmetric AES encryption, and DiffieβHellman secure key exchange. To create your own theme, tap the three-dot button (Android) or go to Chat Themes (iOS) and choose Create new theme. Here, you can create your own look if you don't like any of the default options.
New user announcement To use live locations and proximity alerts, go to the contactβs chat window and tap on the βAttachβ icon shaped like a paperclip. Choose the location button here, and choose βShare my Live Locationβ. You will be able to send live locations for either 15 minutes, 1 hour or 8 hours. Go to Settings > Chat Settings to create your own theme. Everyone (default one: Allow everyone to view your profile.
Telegram Privacy Options Telegram also includes useful security options in this menu, which differ in name slightly on Android and iPhone. Use Passcode Lock to keep people from reading your chats. You can review all Active Sessions and terminate any logins that you no longer use. Telegram supports two layers of secure encryption. Cloud Chats use server-client encryption while Secret Chats use an additional layer of client-client encryption. All content is encrypted in the same way β be it media, text, or files. In Telegram, you can adjust the color and background. If you like, you can even set up your own custom theme to make Telegram look exactly the way you like.
Chat background Open Telegram app -> Settings -> Privacy and Security.
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