I'd like to hear from you about what i have found out.
In our place they open a company who will accept investments which they guaranteed 400% interest for 1 month. I have found out that they do crypto trading. Is this usual to identify them as a scam?
If they are THAT good to get 400% return with any investment they wont sell their strategy and simply get painfull rich in no time. So yes, definitly a scam attempt were you will definitly lose your money.