Harmony Exploit Mints 4B ONE Tokens, 26% of Total Supply

Attackers exploited Harmony protocol flaws to mint 4 billion ONE tokens, representing 26% of total supply. Most funds moved to exchanges amid price crash.

Woofun AI reports that vulnerabilities in the Harmony protocol allowed attackers to illegally mint approximately 4 billion ONE tokens. This unauthorized issuance accounts for 26% of the network's total token supply.

About 2.8 billion of the minted tokens were transferred to exchanges during the subsequent price decline. The Harmony totalSupply endpoint did not reflect this secondary offering, creating a discrepancy between on-chain reality and public data. Harmony stated it is collaborating with exchanges to freeze the funds while researching patches and rollback solutions.