Zano Exploiter Minted 36.9 Million Unauthorized ZANO Before Blockchain Rollback

WHY IT MATTERS

Think of a blockchain like a shared ledger that records every transaction. One of its key promises is that once something is written in the ledger, it cannot be changed. In this case, an attacker found a flaw that let them essentially print counterfeit money — creating millions of new tokens that were never supposed to exist. This is dangerous because flooding a cryptocurrency with extra tokens can dilute the value of tokens that real users already own, similar to a government printing excessive amounts of money. The development team chose to "roll back" the blockchain, which is like tearing out recent pages of the ledger and going back to an earlier version. While this removed the fake tokens, it also erased real transactions that happened during that time, and it raises important questions about how decentralized a project truly is if a small team can rewrite its history.