Harmony considers rollback after suspected exploit inflates ONE supply
Summary
Harmony is considering a blockchain rollback after claims that an attacker minted nearly 4 billion unauthorized ONE tokens, roughly 26% of supply. The network said it is working with exchanges to freeze funds, preparing a patch, and evaluating rollback options, but it has not confirmed the cause, the token count, or how much was sent to exchanges. A public claim alleged the tokens were minted via empty blocks, with about 2.8 billion quickly moved to exchanges as ONE’s price dropped. ONE fell about 33.9% in 24 hours. The incident comes after Harmony’s June 2022 Horizon Bridge hack, which stole about $100 million and was later attributed by the FBI to North Korea’s Lazarus Group.
