https://techcrunch.com/2020/05/12/telegram-abandons-its-ton-blockchain-platform/

Messaging service Telegram said on Tuesday it is abandoning its blockchain platform Telegram Open Network (TON) after a lengthy battle with the U.S. Securities and Exchange Commission (SEC).

“Today is a sad day for us here at Telegram. We are announcing the discontinuation of our blockchain project,” wrote Pavel Durov, the founder and chief executive of Telegram, on his channel.