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The encryption is based on 2048-bit RSA encryption, 256-bit symmetric AES encryption, and Diffie–Hellman secure key exchange. In fact, Telegram offers many more features rather than other Messaging apps in the same market. Besides these security enhancements, you can set a self-destruct timer of duration varying from one second to one week. Furthermore, you or the other person cannot forward messages that you receive within the Secret Chat and taking screenshots (or screen recordings) is completely blocked. Currently, the Secret Chat is limited to conversations between only two people and Secret Groups are not supported within Telegram.

Telegram Profile Photos Today is an important day in the history of Telegram – marking not only a new milestone, but also the beginning of Telegram's sustainable monetization. We believe that Telegram's development should be driven primarily by its users, not advertisers. This way our users will always remain our main priority. The aforementioned secret chats are where you can take part in end-to-end encrypted messaging with a contact. But that’s not its only benefit: Secret chats also don’t allow a person forward messages from there or take screenshots. Of course, someone could take a picture of the screen with another device, but it’s still discouraged, and it’s bolstered by another feature: self-destruct timers. Depending on what Android skin your phone uses and how much RAM you are usually left with to spare, Android’s algorithms may close Telegram and other apps in the background, delaying your new message notifications till when you open the app again manually.

How often have you sent a message to a colleague or friend and then realized it is filled with typos? With Telegram, you can quickly make it right with its edit feature. Telegram may be among the most popular messaging services in the world, yet there are still many who don’t know what it’s all about. The app is often name-dropped in discussions regarding online privacy and security, but aren’t all messaging apps secure? Don’t more popular apps like WhatsApp and Facebook Messenger (despite their ties to Facebook) also have the fabled “end-to-end” encryption? What makes Telegram so special? With these features, you're ready to become an advanced Telegram user and take full advantage of the app. There are lots of little touches around the app that make it a joy to use, so you may find even more. New user announcement

To lock your messages, go to “Settings”, “Privacy and Security” and tap on “Passcode Lock”. You will be asked to set a four-digit passcode and confirm it. Once you do that, you will find additional options to “unlock the app with fingerprint” and “auto-lock” it after a specific duration. You’ll have to be especially concerned with privacy to want to do this — it means you’ll never have a chat log — nonetheless, it’s a nice option that Facebook Messenger, WhatsApp, and WeChat don’t have.