Send Telegram Messages over Tor with Whonix ™
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.
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 calls.
Advantages include: 
- the client source code, protocol and API are opensource - other closed source elements are planned for eventual release in the future
- verified builds are supported
- end-to-end client encryption via a 'secret chats' option [archive]
- options for self-destructing messages, two-step verification and other advanced privacy/security options 
- support for Android, iPhone/iPad, Windows, macOS and Linux
- access to chats across multiple devices
- no limits on the size of chats and media
- a free service with no advertisements or subscriptions
- a stated commitment to protect personal information, conversations and other data
- interested readers can learn more about the security protocol here [archive].
- The application requires the user to register a phone number to create a Telegram account. See also Phone Number Validation. This is why it is not recommended for anonymous messaging at this time.
- End-to-end client encryption is not a default. Easy to confuse encrypted and non-encrypted chats. For the purpose of encrypted chats it would be better to use a messenger that is always encrypted end-to-end by default.
- At time of writing, starting a phone call form a secret (encrypted) chat resulted in a regular (unencrypted) call. The call log appears in the chat log of the regular (unencrypted). Not in the secret (encrypted) chat. There is no visual feedback to distinguish an encrypted from an unencrypted call, even if encrypted calls existed.
One viewpoint is to see telegram as modern public chat, IRC alternative.
To launch the application, in Whonix-Workstation ™ terminal run.
Figure: Telegram Desktop in Whonix ™ 
- Whonix ™ Telegram Chat
- GitHub: Telegram Desktop - Official Messenger [archive]
- Telegram for Linux [archive]