Harmony is confronting a major exploit that saw about 4 billion ONE tokens minted without authorization, more than a quarter of the token’s total supply. The consequences were immediate: ONE’s price crashed nearly 40% as the newly issued tokens began moving toward exchanges at speed.

This isn’t a standard contract bug or isolated wallet attack. Harmony has confirmed the exploit, issued emergency software updates to block further minting, and halted its token bridge. But the real leverage now sits with exchanges.

The project has asked major trading platforms to freeze assets linked to four flagged wallet addresses connected to the exploit. Analyst coverage suggests about 2.8 billion of the minted tokens may already be on exchanges, meaning that unless those flows are frozen, there’s little Harmony can do to recover tokens that have already been sold or moved off-chain. The focus now is on Harmony’s response: whether enough of the newly minted supply can be contained at the exchange level to limit further liquidation and restore at least some confidence.