First and foremost be very cautious. The fact that you can lose your money within seconds is alarming and as such don't give out your private keys and personal data Scammers can be seen all around, and bitcoin is no exception to it. As each and every activity related to bitcoin takes place through the internet it is easy for the scammers to make people fall into the trap. To stay away from those scammers we need to analyze the particular project in a better way and one thing need to be considered is the luck. Some looks perfectly legit and at some point they scam us and by that situation we cannot do anything. Beware of scammers. Don't trust anybody