It's really bad how things got into in the crypto world where many got hacked as cyber criminality is very prone. How much the securities have been developed from the network level and hardening the firewall of the system. Still, this people are up into something just to take what they want to have.
Most of these cybercriminals are targeting mostly BTC Wallets which is kind of irreversible unless it will be under on an exchanger accounts where they can froze it but if not then those funds are totally vanished. That is why from time to time security engineers developed more technologies that could counter this kind of acts. Putting the security level one step ahead of those hackers.
The authorities that behind of tracing this people are also up to date and always do researching, tracking . But the problem is that it will take time for them to do so as cyber criminals are mostly experienced ones and hard to catch. Before the authorities even trace them, they probably hop into another network to avoid them to being trace again. With that they will check on another target and continue their doings.
With the technology rising to digital world, this kind of happening will probably be frequent. So, I am hoping that the authorities that behind the jurisdictions of this should put their technology on advance level in order for them to work efficiently in a more faster way.