Blockchain is of database essentially that almost anybody can write to. Hackers could reward users with some sort of badge or something on nft's and hackers put it into the blockchain so they can have that nft in their wallet. Any other website on earth could basically look at their crypto wallet and verify that they have this item that came from me. The technology enables something that couldn't already be done like you could use a regular database for this. It would be better than the  branchard if it could store more information be faster to query but that it's really hard on an adoption standpoint.