Funding open source and keeping comms private
Briefly

According to Telegram, the service does feature end-to-end encryption, although only in "secret chats." Private and group chats use server-client encryption, which is not as secure.
Hodgson's contention is that Durov could access some of the data held in Telegram, meaning the actions of the authorities are unsurprising.
We've made it clear that the IP addresses and phone numbers of those who violate our rules can be disclosed to relevant authorities in response to valid legal requests.
Element, on the other hand, has end-to-end encryption enabled by default. Even if Hodgson wanted to see user messages, he could not.
Read at Theregister
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