Harmony's ONE token plummeted roughly 26% after an apparent attack allegedly minted around 4 billion new tokens, a figure equivalent to about a quarter of the network's total supply, sparking fresh concerns over the beleaguered blockchain project's security.
What Happened
The incident sent ONE tumbling as traders scrambled to price in the sudden dilution risk posed by billions of freshly created tokens. The alleged mint represents a significant portion of Harmony's circulating supply, and the flood of new coins threatened to erode the value held by existing holders.
Harmony acknowledged the situation during Asian morning trading hours, saying it was coordinating with cryptocurrency exchanges in an effort to freeze the funds tied to the attacker. The project also said it was preparing a software fix aimed at addressing the exploit and stemming further damage.
A single exploit that conjures a quarter of a network's supply is every token holder's worst nightmare.
A Troubled History
The attack marks another painful chapter for Harmony, which has struggled to regain its footing since a major breach years ago drained hundreds of millions of dollars from its cross-chain bridge. That earlier hack left lasting scars on both the project's finances and its reputation among investors.
For a blockchain already fighting to rebuild trust, the latest incident compounds an uphill battle. Sudden, large-scale minting events are particularly damaging because they undermine confidence in the integrity of a token's supply mechanics — a core promise of any credible crypto asset.
Key points from the developing situation:
- ONE fell about 26% following the alleged mint
- Roughly 4 billion tokens were reportedly created, near a quarter of total supply
- Harmony said it is working with exchanges to freeze funds
- A software fix is being prepared
What Comes Next
The effectiveness of Harmony's response will hinge on how quickly exchanges can lock down the suspect funds and whether the promised software patch can neutralize the vulnerability. Investors will be watching closely to see if the team can contain the fallout before further selling pressure builds.
As of the reporting window, the full scope of the attack and the identity of the perpetrator remained unclear, with Harmony's recovery efforts still unfolding in real time.