My question is: does it mean that no one can outsmart those hacker?
Each bear market have these hacking incidents and that's the sad thing about it but to say that the hackers can't be outsmarted, I don't think so.
It's the employees who have neglected the security of their systems which allowed these hackers to penetrate. They have to be alert at all times since they're in the money business. There is no more room for mistake.
Why is it that their major targets was on well know sites?
They have more money and that's why all eyes are on them.
Does it mean that no one can develop a stronger security measures to outsmart those hackers or does it mean that most of the hacks that is happening are from Insider? Or maybe someone who is already in the system are leaking out their information to hacker ?
Those are possibilities, there's an insider and the security system they have needs some updates but missed it or simply human error and overlooked the dangers of missclicking links.
Again, how do you trust the people that are being employed to work with most of the exchange or gambling site?
What are the strategies to ensure that the staff they are hiring is trusted and can not compromised their duties or works, because it's always said that only those who are Inside that can know the way about the system.
This is out of our scope, these companies need to do certain background checks thoroughly before hiring someone.
Because AFAIK, there are also spies from NK who are pretending to apply for certain jobs and uses fake identities they have hacked until they get the job to do such inside-job.
