Not only cryptocurrency , hacking effects everything. Whether it is related to monetary , national security , personal stuff or anything which is to be kept away from others. Hackers should be punished for their deeds.
But if we keep a strong security to our wallets and our money then it may not occur many times. With the passage of time the developers are doing their best to give more security to the money of people and it is expected that in the future not any tragedy like it will happen.