How can one possibly steal from a blockchain system? I thought that was the whole point of blockchain!
Block chain has been created stupidly. It is more like a bearer bond than a security currency.
The block chain itself was not hacked. The hacker used stolen keys. Just like the most secure door on earth is useless if you leave a key under the mat.
Unlike banks, stolen blockchain money is there for all to see and trace. Many criminals who thought they were anonymous have been caught years down the line by tracking their spending.