I think  a lot of people have misunderstood hacking an exchange with hacking a blockchain.

All the negativity you hear in he internet will most certainly be linked to and around a an token listed on the exchange but not the actual blockchain.

But I think some mediocre blockchain are prone to getting an ddos or 51 attack but the top ones in this space are doing really good to prevent hacking .

We must understand that one of the fundamental properties of blockchain is that it cannot be tampered with ,so is much of the hype about ....