App Spotlight: Telegram
Apr 22
Telegram is a messaging app with a focus on speed and security, it’s super-fast, simple and free. You can use Telegram on all your devices at the same time — your messages sync seamlessly across any number of your phones, tablets or computers. Telegram has over 700 million monthly active users and is one of the 10 most downloaded apps in the world.
With Telegram, you can send messages, photos, videos and files of any type (doc, zip, mp3, etc), as well as create groups for up to 200,000 people or channels for broadcasting to unlimited audiences. You can write to your phone contacts and find people by their usernames. As a result, Telegram is like SMS and email combined — and can take care of all your personal or business messaging needs. In addition to this, we support end-to-end encrypted voice and video calls, as well as voice chats in groups for thousands of participants.
Why are people navigating to Telegram?
like other messaging apps, Telegram offers one-to-one chats, group chats, support for sending media and even tools like the ability to send ephemeral messages (those that disappear after a given time). However, through support for much larger group messaging and its early adoption of channels for broadcasting, Telegram is more effectively more 'social' and more suited for use more publicly. It allows for messaging among groups of up to 200,000 compared to just over 1,000 by WhatsApp, and it also has large file-sharing capabilities of up to 2GB. The channels function allows users to broadcast messages to large audiences, with no limit on the number of subscribers.
Secret Chats
Secret chats are meant for people who want more secrecy than the average fella. All messages in secret chats use end-to-end encryption. This means only you and the recipient can read those messages — nobody else can decipher them, including us here at Telegram (more on this here). On top of this, Messages cannot be forwarded from secret chats. And when you delete messages on your side of the conversation, the app on the other side of the secret chat will be ordered to delete them as well.You can order your messages, photos, videos and files to self-destruct in a set amount of time after they have been read or opened by the recipient. The message will then disappear from both your and your friend's devices.All secret chats in Telegram are device-specific and are not part of the Telegram cloud. This means you can only access messages in a secret chat from their device of origin. They are safe for as long as your device is safe in your pocket.
Self-Destruct
The Self-Destruct Timer is available for all messages in Secret Chats and for media in private cloud chats. To set the timer, simply tap the clock icon (in the input field on iOS, top bar on Android), and then choose the desired time limit. The clock starts ticking the moment the message is displayed on the recipient's screen (gets two check marks). As soon as the time runs out, the message disappears from both devices. We will try to send a notification if a screenshot is taken. Please note that the timer in Secret Chats only applies to messages that were sent after the timer was set. It has no effect on earlier messages.
Encryption
Telegram supports two layers of secure encryption. Server-client encryption is used in Cloud Chats (private and group chats), Secret Chats use an additional layer of client-client encryption. All data, regardless of type, is encrypted in the same way — be it text, media or files. Telegrams encryption is based on 256-bit symmetric AES encryption, 2048-bit RSA encryption, and Diffie–Hellman secure key exchange.
People Nearby
People Nearby is an optional feature that allows Telegram users to explore local groups, find friends to chat with in their area, or quickly exchange contacts with people who are close. You can find it in Contacts > Find People Nearby, as well as directly in the side menu on Android. While you have the People Nearby section open on your screen, people who are very close will be able to see you there – so that it's easy to exchange contacts. If you don't open the section, others will never see you in 'People Nearby'.
Search Warrants
"Secret chats use end-to-end encryption, thanks to which we don't have any data to disclose.
To protect the data that is not covered by end-to-end encryption, Telegram uses a distributed infrastructure. Cloud chat data is stored in multiple data centers around the globe that are controlled by different legal entities spread across different jurisdictions. The relevant decryption keys are split into parts and are never kept in the same place as the data they protect.
As a result, several court orders from different jurisdictions are required to force us to give up any data. Thanks to this structure, we can ensure that no single government or block of like-minded countries can intrude on people's privacy and freedom of expression.
Telegram can be forced to give up data only if an issue is grave and universal enough to pass the scrutiny of several different legal systems around the world. To this day, we have disclosed 0 bytes of user data to third parties, including governments."
To protect the data that is not covered by end-to-end encryption, Telegram uses a distributed infrastructure. Cloud chat data is stored in multiple data centers around the globe that are controlled by different legal entities spread across different jurisdictions. The relevant decryption keys are split into parts and are never kept in the same place as the data they protect.
As a result, several court orders from different jurisdictions are required to force us to give up any data. Thanks to this structure, we can ensure that no single government or block of like-minded countries can intrude on people's privacy and freedom of expression.
Telegram can be forced to give up data only if an issue is grave and universal enough to pass the scrutiny of several different legal systems around the world. To this day, we have disclosed 0 bytes of user data to third parties, including governments."
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