At first I'm a advocate of third party doing an audit of the code, before finally releasing it to production. But it seems that it is not enough as hackers are one step ahead of the game, finding loopholes in front wherein this so called auditors can't find in the first place. I'm sorry to hear that another of this Defi platform got hacked, but I guess this will be the scenario and more are going to come in the future in projects are not going to be active testing their systems even after it has been released.