Harmony One said it will reverse 109,000 transactions following a security exploit on its network, a move that could disrupt transaction history and trigger disputes over data consistency.
The blockchain platform, which operates the ONE token, announced the rollback plan in a statement on Friday, citing concerns that selective transaction restoration could create an inconsistent state across the chain. The decision follows a breach that allowed an attacker to exploit vulnerabilities in the network’s bridge protocol, siphoning off approximately $100 million in digital assets.
Harmony’s approach contrasts with other blockchain projects that have faced similar incidents. Ravencoin, another cryptocurrency network, is currently embroiled in a separate dispute over a proposed rollback of transactions following an exploit. Critics argue that such reversals undermine the immutability principle of blockchain technology, which is foundational to decentralized finance.
The exploit on Harmony’s network occurred in January 2024, but the full extent of the damage was only recently quantified. The company has not disclosed whether it will compensate affected users, though it has stated that it is working with law enforcement and cybersecurity firms to investigate the breach. The rollback is expected to take place within the next two weeks, pending community and validator approval.
The incident underscores ongoing challenges in securing cross-chain bridges, which have become frequent targets for hackers due to their centralized design and large liquidity pools. Harmony’s move to reverse transactions may set a precedent for how other networks respond to similar breaches, though it risks eroding trust in the platform’s commitment to decentralization.



