Recently I came across an article about the future of decentralized exchanges and how they are going to transform the centralized exchanges. One thing that clearly mentioned is that decentralized exchanges are secure and impossible (kind of) to hack as no central entity is running/controlling them. However, I heard about the security breach of Bancor and waves DEX. So what's the point of decentralized exchanges if they are still being hacked 
There are no technology platforms that do not have their own loop holes, no matter how tight they think they have secured every angle, there will always be a loop hole that a hacker will see and use as their weakness against them, from there is when they become perfect, as they say, once bitten, twice shy. Their weakness will eventually make them stronger as long as it does not kill them. It is when an exchange allows themselves to be bitten twice through same way that I so much frown at, it means they are just concerned about the profit they are making and not the security of its users.Whether decentralized or no decentralized, they still have a way of serving the needs of the public in their own way.