Telegram group of investments that promise 10 times of interest are not true but scams.
Telegram is not a safe platform for keeping Bitcoin ,if your Bitcoin is being stored on telegram wallet it is risky because it can be stolen and hacked easily by hackers since telegram is being used for illegal activities which also include drug trafficking and money laundering .

Telegram draws unwanted attention from scammers since they always want to take advantage of members , scammers poses a very big problem in the crypto community   these days, in other for you to avoid them, you need to avoid unknown files and links whenever you get them and don't click on them without carefully checking on them ,also check wallet address before sending .

A fake telegram apps can easily recognize Blockchain address from mere chats and then replace the users address with that of the scammers.