Harmony Wants to Rewind Its Blockchain After a Major Exploit — Here's Why That's So Controversial

WHY IT MATTERS

Imagine you're using a shared Google Doc where everyone agrees that once something is written, it can never be deleted — that's essentially how blockchains are supposed to work. Now imagine the document's administrators say they're going to undo the last several pages because someone wrote something harmful. That's what a 'rollback' is. While it might fix the immediate problem (the exploit), it also means legitimate edits by other people get erased too. More importantly, it breaks the promise that the record is permanent and tamper-proof. For crypto newcomers, this is a reminder that not all blockchains are equally decentralized — some can be controlled by a small group of decision-makers, which carries real risks for users.