Harmony Protocol Exploited, 4 Billion ONE Tokens Minted Unauthorized
The Harmony Layer-1 blockchain experienced a significant exploit, resulting in the unauthorized minting of approximately 4 billion ONE tokens. This incident led to a drastic drop in the token's price and prompted immediate actions from the team to mitigate the damage.
An exploit on the Harmony Layer-1 blockchain allowed an attacker to mint around 4 billion ONE tokens, which constitutes about 26% of the total supply. This unauthorized minting occurred through the use of empty blocks and related vulnerabilities. Following the incident, large amounts of the minted tokens were quickly transferred to exchanges for sale, leading to a price crash of approximately 30-40% for the token.
In response to the exploit, the Harmony team took several immediate actions. They paused the cross-chain bridge to prevent further transactions, released an emergency patch for validators to halt any additional unauthorized minting, and coordinated with exchanges to freeze the funds that had been moved. The team is also evaluating the possibility of a chain rollback to address the exploit's impact.
The incident highlights significant vulnerabilities within the Harmony blockchain's mechanisms, particularly concerning the minting process. The scale of the loss, amounting to 3.2 million USD, underscores the severity of the situation and the potential ramifications for the token's market stability. The actions taken by the team reflect an urgent effort to regain control and protect the integrity of the blockchain.