I just want to know how those people behind bitcoin secure the money they will invest because as far as I know there are lots of hackers all over the world.
Yes there is a lot of hackers out there but there are also many ways to keep secure your bitcoins. Before investing you should learn first how to safeguard your bitcoin and keep it away from hackers. Investing is risky and crypto world is full of hackers and scammers ,so be carefull enough. Invest at your own risk and secure your bitcoin by your own.