According To expect they always say blockchain can never be hacked and your information can never be stolen .. But day in day out Hacker are hacking crypto exchanges to steal people asset , ETH Suspended hard Fork because of security reason . HitBTC and Cryptopia are understand maintenance because of hacker . Are they Using block-chain technology to deceive Us ?...
Exact the same things happened with credit cards for a pretty long time since their appearance. Same things were with the wild west, when every now and then banks were robbed. The crypto is young and there is a lot things should been done to bring crypto to the mainstream.