Harmony plans rollback, wiping 109,000 transactions after ONE exploit
Summary
Harmony will roll back its blockchain to the Aug. 11 checkpoint after an exploit minted forged ONE tokens. Validators will revert to blocks at 11:25 pm UTC on Aug. 11, and new blocks will resume from replacement databases. The rollback discards 109,126 regular transactions and 315 staking transactions confirmed after that point. Harmony said selective restoration is unsafe because balances, contract state, nonces, and other chain conditions would no longer match. Investigators said nearly all forged ONE has been traced to wallets or service boundaries, and the team is working with exchanges, bridges, and law enforcement. The move makes Harmony one of the few networks to reverse confirmed blockchain activity after an exploit.
