By strickly researching about their what going to do,because now many of those scammer was pretending a staff of one ico and they ask for money,im sure you will know if scammer was came to you its just was horrible.
if we know what the scammer will do then we do not have to laboriously secure our wallets because we already know. and how can we know what a scammer will do with us ?. we will never know when a scammer will steal the bitcoin from our wallet. so we must always be ready for alert and careful that scammers do not steal our bitcoin just like that,