Harmony Plans Rollback, Wiping 109,000 Transactions After ONE Exploit
Harmony plans to roll back its blockchain to Aug. 11 following an exploit that created forged ONE tokens, discarding more than 109,000 transactions confirmed after its chosen checkpoint.
Intelligence analysis by Llama

Harmony is planning to roll back its blockchain to Aug. 11 after an exploit created forged ONE tokens, discarding over 109,000 transactions. The network is concerned that selectively restoring transactions could create inconsistent chain state.
Imagine you have a big notebook where you write down all the transactions that happen on a blockchain. But someone finds a way to cheat and writes fake transactions in the notebook. To fix this, the notebook needs to be reset to a point before the cheating started, which is what Harmony is doing. This will erase over 109,000 transactions that were already confirmed, but it's necessary to keep the blockchain safe and honest.
Analysis
ONE Exploit and Rollback Plans
Harmony's decision to roll back its blockchain to Aug. 11 is a response to an exploit that created forged ONE tokens. The exploit resulted in over 109,000 transactions being confirmed after the chosen checkpoint. The network is concerned that selectively restoring transactions could create inconsistent chain state, which would be unsafe.
Impact on Transactions
The rollback will affect over 109,000 transactions, including 109,126 regular transactions and 315 staking transactions. The network is working with exchanges, bridges, and law enforcement to investigate the exploit and recover the forged ONE tokens.
Comparison to Ravencoin
Harmony's plan to roll back its blockchain is similar to Ravencoin's recent experience with a potential three-day blockchain reorganization after a consensus flaw was exploited. Ravencoin's mining pools began building a competing chain that could reverse previously confirmed transactions.
Key points
- Harmony plans to roll back its blockchain to Aug. 11 following an exploit that created forged ONE tokens.
- The rollback will affect over 109,000 transactions, including 109,126 regular transactions and 315 staking transactions.
- Harmony is working with exchanges, bridges, and law enforcement to investigate the exploit and recover the forged ONE tokens.
If Harmony's rollback is successful, it could help to restore trust in the network and prevent similar exploits in the future. Additionally, the network's collaboration with exchanges, bridges, and law enforcement could lead to a better understanding of how to prevent and respond to such incidents.
The rollback could also have negative consequences, such as creating inconsistent chain state or affecting the network's reputation. Furthermore, the exploit could have already caused significant damage, and the network's efforts to recover the forged ONE tokens may not be successful.



