Telegram (messaging service)
 |
|||||||||||
| Developer(s) | Telegram Messenger LLP | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Initial release | August 2013 | ||||||||||
| Stable release(s) | |||||||||||
|
|||||||||||
| Preview release(s) | |||||||||||
|
|||||||||||
| Platform | Web platform, Windows NT, macOS, Linux, Android, iOS, Windows Phone | ||||||||||
| Available in | 8 languages | ||||||||||
|
List of languages
English, Spanish, German, Dutch, Italian, Arabic, Portuguese and Korean
|
|||||||||||
| Type | Instant messaging | ||||||||||
| License | GNU GPLv2 or GPLv3 | ||||||||||
| Website | telegram |
||||||||||
| Android | 4.3.0 (1085) / 7 September 2017 |
|---|---|
| iOS | 4.3.0 (66029) / 3 September 2017 |
| Windows Phone | 2.6 / 15 September 2017 |
| Windows, macOS, Linux | 1.1.23 / 6 September 2017 |
| macOS (Mac App Store version) | 3.4 (106100) / 24 September 2017 |
| Android | 4.3.0 (10895) / 12 September 2017 |
|---|---|
| iOS (Swift) | 3.5 (148) / 26 September 2017 |
| Windows, macOS, Linux | 1.1.23 / 6 September 2017 |
| macOS (Mac App Store version) | 3.4 (106348) / 28 September 2017 |
Telegram is a proprietary, non-profitcloud-based instant messaging service. Telegram client apps exist for Android, iOS, Windows Phone, Windows NT, macOS and Linux. Users can send messages and exchange photos, videos, stickers, audio and files of any type.
Telegram is supported by Russian entrepreneur Pavel Durov. Its client-side code is open-source software but contains binary blobs, and the source code for recent versions is not always immediately published, whereas its server-side code is closed-source and proprietary. The service also provides APIs to independent developers. In February 2016, Telegram stated that it had 100 million monthly active users, sending 15 billion messages per day. According to its CEO, as of April 2017, Telegram has more than 50% annual growth rate.
The security of Telegram has faced notable scrutiny; critics have claimed that Telegram's security model is undermined by its use of a custom-designed encryption protocol that has not been proven reliable and secure, and by not enabling end-to-end encryption for messages by default. Pavel Durov has argued that this is because it helps to avoid third-party unsecure backups and to allow users to access messages and files from any device. Messages in Telegram are server-client encrypted by default, and the service provides end-to-end encryption for voice calls and optional Secret Chats.
Telegram was launched in 2013 by brothers Nikolai and Pavel Durov, who previously founded the Russian social network VK, but had to leave the company after it was taken over by Mail.ru Group. Nikolai Durov created the MTProto protocol that is the basis for the messenger, while Pavel provided financial support and infrastructure through his Digital Fortress fund with business partner Axel Neff, a third founder of Telegram.
...
Wikipedia