When it comes to Trading aside your own coverage, it a matter of security, lately more bots have been showing up on Telegram which are mostly scammers, i would greatly advise you work on your skill set and leave bots. But if you wanna use, it must be from a trusted person, company (exchanges).
Beware of scammers and there schemes, especially on Telegram (this is there headquarter).
Just avoid the usage of those trading bots in unknown sources. There have been a lot of app development through telegram.
However, I am not amazed of the majority of them because it's still doesn't change the fact that it's a den of scammers.