Most of these exchanges do stuff with customers money too while on there especially if they haven't withdrawn for a long time. Coinbase, poloniex, bitmex and binance I believe will all be susceptible to this, as well as bitfinex who have already proven how great their money management strategies are (I luckily only had a dollar on there at the time of that hack)...
Hacking doesn't have to do anything with the reputation of an exchange. Any and every exchanges are prone to hacking no matter how stringent information security mechanisms they have! The reputation matters when an exchange gets hacked and how they manage the entire scenario to get back online and refund their customers.
On the recent hack on Binance, I believe they are trying really hard to get the situation under control. The owner is being upfront in communicating their plans and they have created a fund called SAFU to deal with such unforeseeable events. That's where the reputation comes from!
I honestly, agreed on you Sir that almost all exchange are really prone to hacking. But I also believed that in some other exchange there is a big possible an inside job happen. Like what happened before on etherdelta, its a decentralized platform exchange were it has been hacked many times and yet still they have a traders who used their platform though majority are afraid to use anymore. For me, there in that case I do believed that there is an inside job though I don't have evidence, maybe my evidence only was etherdelta before you can able to use it you need to import first your private key and eth address, so in that case they have an access to steal your coins ion there, in my opinion only and based on my experienced too. But for now it is an advantage to use an exchange that belong to top in the market like Houbi, coinbene, okex and others.
directly make a blame with the site that it do have an inside job but its been known that's its an attack.We do have some options though but even the most reputable ones "Binance"
do even suffer such incident that's why its better not to entrust anyone with our funds.