Most of these "hacks" are inside jobs. They come up with excuses so they can easily run away with users' money. I've seen it time after time and it looks like this will never stop as long as there are greedy people in this world.
hacker is the same as other criminals, the aim is to benefit themselves, it can happen anywhere, but we can breathe a little relief because many countries have formed police cyber, who are indeed required to hunt cyber crime or any crime on the internet, we wait just their actions, hopefully this institution can make the hackers think not to commit crimes.