1. Do not engage in deep conversation with stranger who is only interested asking you about your total bitcoin holding or even regularly asking you about the platform you invested.
I've come across one before whose behaviour appears shabby to me, and I had to stop responding to his message. They message you as if they want to help you, then continue to ask you sensitive questions that could lead them into your account. I was fortunate to have already learned about security and privacy from the forum, even though the person assumed I was still new to the crypto space and even offered to assist me in opening an electrum wallet in order to obtain my private key, thinking I had no knowledge of wallet security. I had to snub him and stopped responding to his message in the end.
3. Sets your telegram account where someone from same group can't contact you because telegram is the head of scammers, they can clone or impersonate someone you know and scam you without the knowledge of the real person.
Telegram is a hub for scammers, and they continue to hoard a large number of them. They use a variety of techniques to lure their victims on a daily basis. Information is essential in the crypto space; you cannot proceed with something you are unsure of until it is clarified. There are far too many useful and false information floating around the community; simply identify the true ones and discard the false ones.