Harmony Protocol's native ONE token crashed 40% on Wednesday after the Layer-1 blockchain confirmed an exploit that saw an attacker mint 4 billion tokens without authorization. Almost all of the minted tokens were transferred to crypto exchanges for sale, according to on-chain analyst Juiceberg, who first reported the minting.
The minting and the dump
Juiceberg, an on-chain analyst, flagged the unauthorized minting on Wednesday. The attacker created 4 billion ONE tokens out of thin air, then moved nearly all of them to exchanges. The rapid transfer suggests the goal was to dump the tokens for other assets before the network could respond. By the time Harmony confirmed the exploit, the damage was already done.
Harmony's confirmation
Harmony confirmed the exploit on Wednesday, acknowledging that the minting had taken place. The team did not immediately say how the attacker gained the ability to mint tokens, or whether any of the funds had been recovered. The confirmation came after the token's price had already begun to slide, leaving holders to wonder what else might be compromised.
The price collapse
The 40% drop wiped out a significant chunk of the token's value in a single day. With billions of new tokens hitting the market, selling pressure was intense. The incident is a reminder that even established Layer-1 networks can be vulnerable to exploits that target their core tokenomics. For a token that had been trading in a relatively tight range, the sudden crash was a shock.
What's still unknown
It's unclear how the attacker managed to mint tokens without authorization, and whether the network's governance or smart contract logic had a flaw that allowed it. Harmony has not disclosed a timeline for a fix or whether it plans to compensate holders. The lack of detail is itself a problem for a project that asks users to trust it with their assets.
