Service contains risks and is suitable for some use cases. (Read more)
The service if produced entirely or partly outside EU/ETA area. The customer is responsible for fulfilment of european data privacy and information security requirements. (Read more)
Telegram
Telegram is a cloud-based mobile and desktop messaging appTerms of Service & Privacy Policy
- https://core.telegram.org/api/terms-of-use
- There are no specific TOS: "In case you want a real Terms of Use, complete with lawyer-speak and all — we don't have that yet, sorry. But we may be adding it in the future".
- Privacy: https://telegram.org/privacy
- API interface TOS: https://core.telegram.org/api/terms-of-use
Evaluation (03 Feb 2017)
End to End ecryption is possible- Versatile; Group discussions,Bots, Channels, Multimedia, File Transfer to 1,5Gt
- Open (mainly) Source (at least APIs)
- Auditing possilbe for Third Party
- Good documentation (esp. for Security Features)
- Compatible with other messaging apps, for example Slack and Irc
- Account can be removed by user (all data will be removed)
- Unused account will be deleted after 6 months afer last login, all data will be removed
Data is stored to Cloud- Phone app is mandatory to install
- Encryption is not on by default
- Uses own encryption protocol MTProto Mobile Protocol https://core.telegram.org/mtproto/description (which is well descripted ) but only some of Telegam´s clients uses it
Login
- Logging is done by full (international) phone number and password while installing Telegam Client. Account is verified by SMS.
Support
- https://telegram.org/support
- https://telegram.org/faq
- No TOS no full support
Provider
- Telegram Org (Pavel and Nikolai Durov).
Revenue
- Pavel Durov is financing Telegram for ideological reasons.
Similar services
- Signal, WhatsApp