Very interesting to read about the ins and outs of this hack. It looks like it was a long time in planning.
You'd have to have sizeable balls to be confident running an exchange in this day and age. They are the biggest and fattest target imaginable and all it takes is one tiny hole in your operation and someone'll let rip.
To run an exchange you need to spend money and effort to safe guard the assets,it is easy to start a crypto currency exchange but to maintain it with utmost security you need to spend money and assign the people needed to safe guard the operations,the stock exchanges are employing high standards and you need to have that kind of security measures for cryptocurrency exchanges too.
An exchanges does have a good security standard, but every day technology is on the rise. The Exchange must also keep updating all of its security systems at all times, as hackers will always evolve rapidly. Do not let the security system manipulated by hackers because it can make the state of the economic system becomes uncontrolled, including the system of digital currency that could have been made destroyed by the hacking incident of an exchange.
The selection of exchange is the most important thing to be able to secure the investment, I am not a promotion but I want to say that Bittrex is one of the exchange that has a good level of trust and you should include Bittrex into the list in trading.
Believe that when we can maintain a stable condition then the development of digital currency will continue to increase.