Telegram

Level B   Service contains risks and is suitable for some use cases. (Read more) Service is not suitable for all use cases. Services may also collect and/or disclose information to third parties such as advertisers and business partners. Service provider may also unilaterally change the licensing, terms of usage or privacy settings. For example grading information and evaluation, research plans, development information, personal information (PII), financial information (e.g. business or other IPR) and information containing archiving responsibilities are not suitable for level C services. University's has no ability or legal mandate to manage the stored information in case of any problem situations. Such cases can be for example employers death or service provider's bankruptcy. Service provider can unilaterally change terms of service and privacy. NB! Classifications in Cloud Guide pages concern only so-called consumer services, cloud services personally adopted by the user. The services adopted by the University (possibly with a separate agreement) may have different implementation and terms of use.

Not in EU/ETA area 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)   Detailed scription will be added here.

Telegram

https://telegram.org/

Terms 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

(03.02.2017)

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