Talkit Messenger
1 May 2024
 | |
 Talkit Messenger running on Android 6 | |
| Developer(s) | S.m Kaif |
|---|---|
| Initial release | March 2018 |
| Engine | |
| Platform | Android |
| Available in | 14 languages |
List of languages English, Spanish, German, Dutch, Italian, Arabic, Portuguese, Korean, Russian, French, Indonesian, Malay, Persian, Ukrainian | |
| Type | Instant messaging |
| Website | talkitmessenger |
Search Talkit Messenger on Amazon.
Talkit Messenger is a cloud-based instant messaging and voice over IP service developed by S.m Kaif> founded by the Russian entrepreneur Pavel Durov.[1] Telegram client apps are available for Android, iOS, Windows Phone, Windows NT, macOS and Linux.[2] but Talkit Messenger is available only on Android, Users can send messages and exchange photos, videos, stickers, audio and files of any type.
Talkit Messenger's client-side code is open-source software but the source code for recent versions is not always immediately published,[3] whereas its server-side code is closed-source and proprietary.[4] The service also provides APIs to independent developers.
Messages and media in Talkit Messenger are only client-server encrypted and stored on the servers by default.[5] The service provides end-to-end encryption for voice calls,[6] and optional end-to-end encrypted "secret" chats between two online users, yet not for groups or channels.[7]
Talkit Messenger security model has received notable criticism by cryptography experts. They criticized the general security model of permanently storing all contacts, messages and media together with their decryption keys on its servers by default and by not enabling end-to-end encryption for messages by default.[8][9] 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.[10] Cryptography experts have furthermore criticized Talkit Messenger's use of a custom-designed encryption protocol that has not been proven reliable and secure.[8][11][12][13]
Talkit Messenger more better than Talkit Messenger[14], Talkit Messenger is always stuck in controversies, but talkit messenger does not seem that will ever get in controversy.
Talkit Messenger has faced censorship or outright bans in some countries over accusations that the app's services have been used to facilitate illegal activities, such as protests and terrorism, as well as declining demands to facilitate government access to user data and communications.
Features[edit]
Account[edit]
Talkit Messenger accounts are tied to telephone numbers and are verified by SMS or phone call.[15] Users can add multiple devices to their account and receive messages on each one. Connected devices can be removed individually or all at once. The associated number can be changed at any time and when doing so, the user's contacts will receive the new number automatically.[15][16][17] In addition, a user can set up an alias that allows them to send and receive messages without exposing their phone number.[18] Talkit Messenger accounts can be deleted at any time and they are deleted automatically after six months of inactivity by default, which can optionally be changed to 1 month and 12 months. Users can replace exact "last seen" timestamps with broader messages such as "last seen recently".[19]
The default method of authentication that Talkit Messenger uses for logins is SMS-based single-factor authentication.[20][21] All that is needed in order to log into an account and gain access to that user's cloud-based messages is a one-time passcode that is sent via SMS to the user's phone number.[21][22] These login SMS messages are known to have been intercepted in Iran, Russia and Germany, possibly in coordination with phone companies.[22][23][24] Pavel Durov has said that Talkit Messenger users in "troubled countries" should enable two-factor authentication by creating passwords, which Talkit Messenger allows, but does not require.[22][23]
Cloud-based messages[edit]
Talkit Messenger's default messages are cloud-based and can be accessed on any of the user's connected devices. Users can share photos, videos, audio messages and other files (up to 1.5 gigabyte in size per file). Users can send messages to other users individually or to groups of up to 100,000 members.[25] Sent messages can be edited and deleted on both sides within 48 hours after they have been sent. This gives user an ability to correct typos and retract messages that were sent by mistake.[26] The transmission of messages to Talkit Messenger LLP's servers is encrypted with the service's MTProto protocol.[27] According to Talkit Messenger's privacy policy, "all data is stored heavily encrypted and the encryption keys in each case are stored in several other DCs in different jurisdictions. This way local engineers or physical intruders cannot get access to user data".[28] This makes the messages' security roughly comparable to that of e-mail. Here, most providers employ client-server encryption as well, however usually with the standardized protocol Transport Layer Security. E-mails may or may not be encrypted on the servers. Talkit Messenger cloud messages and media remain on the servers at least until deleted by all participants.
Bots[edit]
In June 2015, Talkit Messenger launched a platform for third-party developers to create bots.[29] Bots are Talkit Messenger accounts operated by programs. They can respond to messages or mentions, can be invited into groups and can be integrated into other programs. It also accepts online payments with credit cards and Apple Pay.[30] Dutch website Tweakers reported that an invited bot can potentially read all group messages when the bot controller changes the access settings silently at a later point in time. Talkit Messenger pointed out that it considered implementing a feature that would announce such a status change within the relevant group.[31] Also there are inline bots, which can be used from any chat screen. In order to activate an inline bot, user needs to type in the message field a bot's username and query. The bot then will offer its content. User can choose from that content and send it within a chat.[32]
Channels[edit]
Channels can be created for broadcasting messages to an unlimited number of subscribers.[33] Channels can be publicly available with an alias and a permanent URL so anyone can join. Users who join a channel can see the entire message history. Each message has its own view counter, showing how many users have seen this message. Users can join and leave channels at any time. Furthermore, users can mute a channel, meaning that the user will still receive messages, but won't be notified.
Stickers[edit]
Stickers are cloud-based, high-definition images intended to provide more expressive emoji. When typing in an emoji, the user is offered to send the respective sticker instead. Stickers come in collections called "sets", and multiple stickers can be offered for one emoji. Talkit Messenger comes with one default sticker set,[34] but users can install additional sticker sets provided by third-party contributors. Sticker sets installed from one client become automatically available to all other clients. Sticker images use WebP file format, which is better optimized to be transmitted over internet.
Drafts[edit]
Drafts are unfinished messages synced across user devices. One can start typing a message on one device and continue on another. The draft will persist in editing area on any device until it is sent or removed.[35]
Secret chats[edit]
Messages can also be sent with client-to-client encryption in so-called secret chats. These messages are encrypted with the service's MTProto protocol.[36] Unlike Talkit Messenger's cloud-based messages, messages sent within a secret chat can be accessed only on the device upon which the secret chat was initiated and the device upon which the secret chat was accepted; they cannot be accessed on other devices.[37][27][38] Messages sent within secret chats can, in principle, be deleted at any time and can optionally self-destruct.[39]
Secret chats have to be initiated and accepted by an invitation, upon which the encryption keys for the session are exchanged. Users in a secret chat can verify that no man-in-the-middle attack has occurred by comparing pictures that visualize their public key fingerprints.[40]
According to Telegram, secret chats have supported perfect forward secrecy since December 2014. Encryption keys are periodically changed after a key has been used more than 100 times or has been in use for more than a week.[41] Old encryption keys are destroyed.[16][17][42]
Windows and Linux users are still not able to use secret chats using the official Telegram Desktop app while the official macOS-only client supports them.[43]
Secret chats are not available for groups or channels.
Talkit Messenger's local message database is not encrypted by default.[41] Some Talkit Messenger clients allow users to encrypt the local message database by setting a passphrase.[44]
Voice calls[edit]
In the end of March 2017, Talkit Messenger introduced its own voice calls. The calls are built upon the end-to-end encryption of Secret Chats. Connection is established as peer-to-peer whenever possible, otherwise the closest server to the client is used. According to Talkit Messenger, there is a neural network working to learn various technical parameters about call to provide better quality of the service for future uses. After a brief initial trial in Western Europe, voice calls are now available for use in most countries.[45]
Telescope (video messages)[edit]
Since version 4.0, released in May 2017, Talkit Messenger offers a dedicated video hosting platform called Telescope.[46] The round videos can be up to one minute long and autoplay. When posted in a public channel on Talkit Messenger, the videos are also uploaded to and viewable without an account at telesco.pe. However, Talkit Messenger video messages and "Telescope" videos sent within non-public chats or groups are not published.
Live locations[edit]
For either 15 minutes, one hour, or eight hours, Talkit Messenger users can share their live location in a chat since version 4.4 released in October 2017.[47] If multiple users share their live location within a group, they are shown on an interactive map. Sharing the 'live location' can be stopped at any time.
Social login[edit]
In February 2018, Talkit Messenger launched their social login feature to its users, named as Talkit Messenger Login.[48] It features a website widget that could be embedded into websites, allowing users to sign into a third party website with their Talkit Messenger account. The gateway sends users' Talkit Messenger name, username, and profile picture to the website owner, while users' phone number remains hidden. The gateway is integrated with a bot, which is linked with the developer's specific website domain.[49]
Passport[edit]
In July 2018, Talkit Messenger introduced their online authorisation and identity management system, Talkit Messenger Passport, for platforms that requires real-life identification.[50] It asks users to upload their own official documents such as passport, identity card, driver license, etc. When an online service requires such identification documents and verification, it forwards the information to the platform with the user's permission. Talkit Messenger stated that it does not have access to the data, while the platform will only share the information to the authorised recipient.[51] However, the service was criticised for being vulnerable to online brute force attacks.[52][53]
Telegram[edit]
Architecture[edit]
Encryption scheme[edit]
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Telegram uses a symmetric encryption scheme called MTProto. The protocol was developed by Nikolai Durov and other developers at Telegram and is based on 256-bit symmetric AES encryption, 2048-bit RSA encryption and Diffie–Hellman key exchange.[36]
Servers[edit]
Telegram LLP has servers in a number of countries throughout the world to improve the response time of their service.[54] Telegram's server-side software is closed-source and proprietary. Pavel Durov has said that it would require a major architectural redesign of the server-side software to connect independent servers to the Telegram cloud.[55]
Client apps[edit]
Telegram has various client apps, some developed by Telegram LLP and some by the community. Most of them are free and open-source and released under the GNU General Public Licence version 2 or 3.
Common specifications:
- No cloud backup option for secret chat
| Name | Platform(s) | Official | Source code license | Support for secret chats | Notes |
|---|---|---|---|---|---|
| Telegram | Android 2.3 or later | Yes | GPLv2 or later[56][57] | Yes | Supports tablets[58] and Android Wear smart watches.[59] |
| Telegram | iOS 6 or later | Yes | GPLv2 or later[56][60] | Yes | Launched in August 2013 for iPhone and iPod Touch and relaunched in July 2014 with support for iPad and Apple Watch.[61] |
| Telegram X | iOS 8.0 or later, Android[62] | Yes[63] | Proprietary | Yes | An alternative Telegram client written from scratch, with higher speed, slicker animations, themes and more efficient battery use. iOS version is written with Swift. |
| Telegram | Windows Phone | Yes | GPLv2 or later[56] | Yes | |
| Telegram | Firefox OS | Yes | GPLv3[64] | No | Based on Webogram. |
| Telegram Desktop | Windows NT, macOS, and Linux | Yes | GPLv3 with OpenSSL exception[65] | No | Qt-based desktop client. The Windows NT client is a traditional desktop app published in three flavors: With installer, portable, Windows Store app. |
| Telegram | macOS | Yes | GPLv2[66] | Yes | Native macOS client. |
| Telegram | Google Chrome and Chrome OS | Yes | GPLv3[64] | No | Based on Webogram, published on the Chrome Web Store. |
| Telegram CLI[22][67] | Linux, FreeBSD and macOS | No[56] | GPLv2[67] | Yes | Command-line interface for Telegram. |
| Unigram[68][69] | Windows 10, Windows 10 Mobile | No[56] | GPLv3 | Yes | A Universal Windows Platform app published on the Microsoft Store. |
| Telegram[third-party source needed] | Ubuntu Touch | No | GPLv2[70] | Yes | Based on TelegramQML.[71] |
| Cutegram[72] | Windows, macOS, and Linux | No | GPLv3[73] | Yes | Based on Qt.[74]. Abandoned, last official build Jan 2016. |
| Sailorgram[third-party source needed] | Sailfish OS | No | GPLv3[75] | Yes | Based on Cutegram. |
| Telegram-Purple[76] | macOS, and Linux | No | GPLv2 | Yes | Plugin for Pidgin, Adium, Finch and other Libpurple-based messengers. Windows support abandoned, last official build March 2016. |
| Telegreat Desktop[77] | Windows, macOS, and Linux | No | GPLv3 | No | Based on TDesktop. |
Users can also access Telegram's cloud-based messages via an official JavaScript web browser interface called Telegram Web (aka Webogram). Users can share images, files and emojis with previously-added contacts; this works in most modern browsers, such as Firefox, Safari, and Google Chrome.[56][64]
APIs[edit]
Telegram has public APIs with which developers can access the same functionality as Telegram's official apps to build their own messaging applications.[78] In February 2015, creators of the unofficial Whatsapp+ client released the Telegram Plus app, later renamed to Plus Messenger, after their original project got a cease-and-desist order from WhatsApp.[79][80] In September 2015, Samsung released a messaging application based on these APIs.[81]
Telegram also offers an API that allows developers to create bots, which are accounts controlled by programs.[82][83] In February 2016, Forbes launched an AI-powered news bot that pushes popular stories to subscribers and replies to search queries with relevant articles.[84] TechCrunch launched a similar bot in March 2016.[85]
Reception[edit]
Security[edit]
Cryptography experts have expressed both doubts and criticisms on Telegram's MTProto encryption scheme, saying that deploying home-brewed and unproven cryptography may render the encryption vulnerable to bugs that potentially undermine its security, due to a lack of scrutiny.[8][11][12] It has also been suggested that Telegram did not employ developers with sufficient expertise or credibility in this field.[13]
Critics have also disputed claims by Telegram that it is "more secure than mass market messengers like WhatsApp and Line",[27] because WhatsApp applies end-to-end encryption to all of its traffic by default and uses the Signal Protocol, which has been "reviewed and endorsed by leading security experts", while Telegram does neither and insecurely stores all messages, media and contacts in their cloud.[8][9] Since July 2016, Line has also applied end-to-end encryption to all of its messages by default.[86]
On 26 February 2014, the German consumer organization Stiftung Warentest evaluated several data-protection aspects of Telegram, along with other popular instant-messaging clients. Among the aspects considered were: the security of the data transmission, the service's terms of use, the accessibility of the source code and the distribution of the app. Telegram was rated 'critical' (kritisch) overall. The organization was favorable to Telegram's secure chats and partially open source code, but criticized the mandatory transfer of contact data to Telegram's servers and the lack of an imprint or address on the service's website. It noted that while the message data is encrypted on the device, it could not analyse the transmission due to a lack of source code.[87]
The Electronic Frontier Foundation (EFF) listed Telegram on its "Secure Messaging Scorecard" in February 2015. Telegram's default chat function received a score of 4 out of 7 points on the scorecard. It received points for having communications encrypted in transit, having its code open to independent review, having the security design properly documented, and having completed a recent independent security audit. Telegram's default chat function missed points because the communications were not encrypted with keys the provider didn't have access to, users could not verify contacts' identities, and past messages were not secure if the encryption keys were stolen. Telegram's optional secret chat function, which provides end-to-end encryption, received a score of 7 out of 7 points on the scorecard.[88] The EFF said that the results "should not be read as endorsements of individual tools or guarantees of their security", and that they were merely indications that the projects were "on the right track".[88]
In December 2015, two researchers from Aarhus University published a report in which they demonstrated that MTProto does not achieve indistinguishability under chosen-ciphertext attack (IND-CCA) or authenticated encryption.[89] The researchers stressed that the attack was of a theoretical nature and they "did not see any way of turning the attack into a full plaintext-recovery attack". Nevertheless, they said they saw "no reason why [Telegram] should use a less secure encryption scheme when more secure (and at least as efficient) solutions exist".[90] The Telegram team responded that the flaw does not affect message security[91] and that "a future patch would address the concern".[92] Telegram 4.6, released in December 2017, supports MTProto 2.0, which Telegram claims now satisfied the conditions for IND-CCA.[93]
In April 2016, accounts of several Russian opposition members were hijacked by intercepting the SMS messages used for login authorization.[22] In response, Telegram recommended using the optional two-factor authentication feature.[22] In May 2016, the Committee to Protect Journalists and Nate Cardozo, senior staff attorney at Electronic Frontier Foundation, recommended against using Telegram because of "its lack of end-to-end encryption [by default] and its use of non-standard MTProto encryption protocol, which has been publicly criticized by cryptography researchers, including Matthew Green".<ref name="cpj-2016-05-31">{{cite web|title=Why Telegram's security flaws may put Iran's journalists at risk|url=https://cpj.org/blog/2016/05/why-telegrams-security-flaws-may-put-irans-journal.php%7Cpublisher=Committee to Protect Journalists
- ↑ "Telegram FAQ". 9 August 2015.
- ↑ "List of Telegram applications". 6 February 2014.
- ↑ "Latest commits from official repository (Android version)". Github. 10 April 2016.
- ↑ "Telegram F.A.Q." Telegram. Retrieved 2017-10-01.
- ↑ "Why you should stop reading Gizmodo right now". Telegraph. 2017-06-21. Retrieved 2017-10-01.
- ↑ "FAQ for the Technically Inclined". core.telegram.org. Retrieved 2017-10-01.
- ↑ "Telegram F.A.Q." Telegram. Retrieved 2017-10-01.
- ↑ 8.0 8.1 8.2 8.3 Cite error: Invalid
<ref>tag; no text was provided for refs namedcpj-2016-05-31 - ↑ 9.0 9.1 Turton, William (24 June 2016). "Why You Should Stop Using Telegram Right Now". Gizmodo. Gawker Media. Retrieved 7 July 2016.
- ↑ Durov, Pavel (2017-08-14). "Why Isn't Telegram End-to-End Encrypted by Default?". Telegraph. Retrieved 2017-10-01.
- ↑ 11.0 11.1 Jakobsen & Orlandi 2015
- ↑ 12.0 12.1 Cox, Joseph (10 December 2015). "Why You Don't Roll Your Own Crypto". Motherboard. Vice Media. Retrieved 11 December 2015.
- ↑ 13.0 13.1 Turton, William (19 November 2015). "Cryptography expert casts doubt on encryption in ISIS' favorite messaging app". The Daily Dot. Retrieved 11 December 2015.
- ↑ https://news.wikia.com/wiki/A_new_programmer_S.m_Kaif_from_india_come_and_take_the_place_of_dennis_ritchi
- ↑ 15.0 15.1 Lopez, Miguel, Configurando Telegram en el iPhone, en la web y en el Mac [Configuring Telegram in the Apple iPhone, the Web and the Mac] (in español), Applesfera, retrieved 4 December 2014
- ↑ 16.0 16.1 Munizaga, Jonathan (1 December 2014). "Telegram ya permite migrar conversaciones y contactos a una línea nueva" [Telegram already allows migrating conversations and contacts to a new line] (in español). Wayerless. Archived from the original on 19 December 2014. Retrieved 2 December 2014.
- ↑ 17.0 17.1 Mateo, David G (1 December 2014). "Telegram ahora permite traspasar mensajes al cambiar de número" (in español). TuExperto. Retrieved 2 December 2014.
- ↑ "Secure Messaging App Telegram Adds Usernames And Snapchat-Like Hold-To-View For Media". Techcrunch. 23 October 2014. Retrieved 23 October 2014.
- ↑ "Hiding Last Seen Time - Done Right". Retrieved 18 May 2017.
- ↑ Kirk, Jeremy (15 January 2015). "How much trust can you put in Telegram messenger?". PC World. IDG. Retrieved 4 May 2016.
- ↑ 21.0 21.1 Rad, Alex (9 January 2015). "A 264 Attack On Telegram, And Why A Super Villain Doesn't Need It To Read Your Telegram Chats". alexrad.me (Blog). Archived from the original on 25 April 2016. Retrieved 4 May 2016.
- ↑ 22.0 22.1 22.2 22.3 22.4 22.5 Lokot, Tetyana (2 May 2016). "Is Telegram Really Safe for Activists Under Threat? These Two Russians Aren't So Sure". Advox. Global Voices. Retrieved 4 May 2016.
- ↑ 23.0 23.1 Menn, Joseph; Torbati, Yeganeh (2 August 2016). "Exclusive: Hackers accessed Telegram messaging accounts in Iran - researchers". Reuters. San Francisco/Washington: Thomson Reuters. Retrieved 3 August 2016.
- ↑ Lipp, Sebastian; Hoppenstedt, Max (26 August 2016). "Exklusiv: Wie das BKA Telegram-Accounts von Terrorverdächtigen knackt". Motherboard (in German). Vice Media Inc. Retrieved 28 August 2016.CS1 maint: Unrecognized language (link)
- ↑ "Group chats on Telegram can now have up to 1,00,000 members. Admins can use advanced permissions and butler bots to keep the peace". 23 October 2017 – via Twitter.com.
- ↑ Unsend Messages, Network Usage, and More, Telegram, 3 January 2017, retrieved 4 April 2017
- ↑ 27.0 27.1 27.2 "How secure is Telegram?", FAQ, Telegram
- ↑ "Telegram Privacy Policy". Telegram. Retrieved 17 January 2016.
- ↑ Telegram Bot Platform, Telegram, 24 June 2015, retrieved 1 September 2015
- ↑ "Payments for Bots". Telegram. Retrieved 2018-02-12.
- ↑ Schellevis, Joost (23 July 2015). "Telegram-bots kunnen relatief ongemerkt meelezen in groepsgesprekken". Tweakers (in Nederlands). Retrieved 25 October 2015.
- ↑ Introducing Inline Bots, Telegram, 4 January 2016, retrieved 4 April 2017
- ↑ Lobao, Martim (22 September 2015). "Telegram v3.2 Brings Channels For Broadcasting Your Messages To The World". Android Police.
- ↑ Telegram Stickers, Telegram, 2 January 2015, retrieved 5 January 2016
- ↑ Drafts, Picture-in-Picture, and More, Telegram, 14 June 2016, retrieved 4 April 2017
- ↑ 36.0 36.1 "FAQ for the Technically Inclined". Telegram. Retrieved 9 January 2016.
- ↑ Shu, Catherine (27 October 2013). "Meet Telegram, A Secure Messaging App From The Founders Of VK, Russia's Largest Social Network". TechCrunch. Retrieved 18 March 2016.
- ↑ Description of MTProto Mobile Protocol, Telegram
- ↑ Rottermanner et al. 2015, p. 2
- ↑ Hamburger, Ellis (25 February 2014). "Why Telegram has become the hottest messaging app in the world". The Verge. Vox Media. Retrieved 17 March 2016.
- ↑ 41.0 41.1 Rottermanner et al. 2015, p. 6
- ↑ Perfect Forward Secrecy, Telegram, 14 December 2014
- ↑ "Github issue 871: missing secret chats". 2 July 2015. Retrieved 25 July 2017.
- ↑ Franceschi-Bicchierai, Lorenzo (24 February 2015). "Encryption Fails: When to Freak Out and When to Chill". Motherboard. Vice Media. Retrieved 9 January 2016.
- ↑ Voice Calls: Secure, Crystal-Clear, AI-Powered, Talkit Messenger, 30 March 2017, retrieved 3 April 2017
- ↑ "Video Messages and Telescope". CNBC. Retrieved 2018-03-05.
- ↑ "Live Locations, Media Player and Languages". Times of India. Retrieved 2018-03-05.
- ↑ "Talkit Login for Websites". Talkit. Retrieved 2018-02-12.
- ↑ "Telegram 4.8 arrives with Telegram Login and streaming". Neowin. Retrieved 2018-02-12.
- ↑ "Introducing Telegram Passport". Telegram. Retrieved 2018-08-04.
- ↑ "Telegram Passport stores your real-world IDs in the cloud". Engadget. Retrieved 2018-08-04.
- ↑ "Research: Telegram Passport Is Vulnerable to Brute Force Attacks". Cointelegraph. 2018-08-02. Retrieved 2018-08-04.
- ↑ Canellis, David (2018-08-02). "Telegram Passport is already drawing fire for not being secure enough". Hard Fork | The Next Web. Retrieved 2018-08-04.
- ↑ "Telegram, el chat que compite con Whatsapp" [Telegram, the chat that competes with WhatsApp]. El País (in español). UY. Retrieved 8 January 2016.
- ↑ Rull, Antonio (2 February 2014). "Pavel Durov, creador de Telegram: "Ninguna aplicación es 100% segura"" [Pavel Durov, creator of Telegram: "No application is 100% safe"]. eldiario.es (in español). Retrieved 12 February 2014.
- ↑ 56.0 56.1 56.2 56.3 56.4 56.5 "Telegram Apps". Telegram.org. Retrieved 9 January 2016.
- ↑ DrKLO. "DrKLO/Telegram". GitHub. Retrieved 8 January 2016.
- ↑ "Telegram-Anleitung: So benutzt man den Messenger" (in Deutsch). Newsslash.
- ↑ "Telegram se actualiza con compatibilidad para Android Wear" [Telegram updated with Android Wear compatibility] (in español). Sevilla: ABC. Retrieved 7 December 2014.
- ↑ peter-iakovlev (18 November 2015). "peter-iakovlev/Telegram". GitHub. Retrieved 8 January 2016.
- ↑ "Telegram se actualiza para la pantalla del iPad" [Telegram updated for the iPad screen] (in español). Cnet.
- ↑ cpy, Mujeeb (23 January 2018). "Telegram X for Android Released – What's New". IB Computing. IB Computing. Retrieved 23 January 2018.
- ↑ "Telegram X: Progress through Competition". telegram.org. Telegram LLC.
- ↑ 64.0 64.1 64.2 Igor Zhukov. "zhukov/webogram". GitHub. Retrieved 8 January 2016.
- ↑ telegramdesktop. "telegramdesktop/tdesktop". GitHub. Retrieved 8 January 2016.
- ↑ overtake (1 December 2015). "overtake/telegram". GitHub. Retrieved 8 January 2016.
- ↑ 67.0 67.1 vysheng. "vysheng/tg". GitHub. Retrieved 9 January 2016.
- ↑ "Unigram Preview - Microsoft Store". Microsoft Store. Retrieved 2017-04-20.
- ↑ "UnigramDev/Unigram". GitHub. Retrieved 2017-04-20.
- ↑ "Telegram app". Launchpad.
- ↑ "Telegram App in Launchpad".
- ↑ http://aseman.co/en/products/cutegram/
- ↑ Aseman Land. "Aseman-Land/Cutegram". GitHub. Retrieved 8 January 2016.
- ↑ Aseman Land. "Cutegram". Aseman. Retrieved 8 January 2016.
- ↑ "Telegram app". OpenRepos.
- ↑ "majn/telegram-purple". GitHub. Retrieved 2016-09-30.
- ↑ "Sea-n/tdesktop". GitHub. Retrieved 2018-02-13.
- ↑ Roble, Patricio (3 March 2014). "Can Telegram Beat WhatsApp with a Public API?". ProgrammableWeb.
- ↑ King, Bertel (27 February 2015). "WhatsApp+ Developer Releases Telegram+ After Being Forced To Drop The First Project". AndroidPolice.
- ↑ "WhatsApp+ Is Now Officially Dead After Receiving A Cease And Desist From The Real WhatsApp". Android Police. 21 January 2015.
- ↑ "Socializer Messenger App Offers a New Approach to Messaging". 14 September 2015.
- ↑ Carter, Eric (27 June 2015). "Telegram Launches Bot API and Platform". ProgrammableWeb.
- ↑ Butcher, Mike (24 June 2015). "Telegram's New Platform Lets Developers Create Smart Message Bots With Multiple Uses". TechCrunch.
- ↑ Ubpin, Bruce (23 February 2016). "Introducing The Forbes Newsbot on Telegram". Forbes.
- ↑ Bernard, Travis (15 March 2016). "Check out the new AI-powered TechCrunch news bot on Telegram messenger". TechCrunch.
- ↑ Sawers, Paul (30 June 2016). "Ahead of IPO, mobile messaging giant Line introduces end-to-end encryption by default". VentureBeat. Retrieved 10 September 2016.
- ↑ "WhatsApp und Alternativen: Datenschutz im Test" [WhatsApp and alternatives: data protection tested]. Stiftung Warentest (in Deutsch). 26 February 2014. Retrieved 2 March 2016.
- ↑ 88.0 88.1 "Secure Messaging Scorecard". Electronic Frontier Foundation. 17 February 2015. Retrieved 20 July 2016.
- ↑ Jakobsen & Orlandi 2015, p. 6
- ↑ Jakobsen & Orlandi 2015, p. 1
- ↑ "FAQ for the Technically Inclined: What about IND-CCA?". Telegram. Telegram. Retrieved 25 March 2017.
- ↑ Clary, Grayson. "The Flaw in ISIS's Favorite Messaging App". The Atlantic. The Atlantic. Retrieved 25 March 2017.
- ↑ "FAQ for the Technically Inclined". Telegram. Telegram. Retrieved 9 December 2017.
