Another thing that one ought to be worried about would be the fact that this particular hack would have exposed those who were affected by it to additional malicious attacks, assuming one would have made use of a similar password on other services, like their online banking account or email for instance.
Security researcher Graham Cluley mentioned, “Quite how criminals managed to steal the credentials for so many Minecraft users isn’t clear. Possibilities range from simple phishing attacks, keylogging malware stealing players’ details as they log into the game, or even a security breach at Minecraft itself.”
Leaks and hacks are perils of the modern day digital world, and it does not look as though due diligence should be forgotten anytime soon.