Key Highlights
- Gnosis Chain recovered $9.4 million from the Balancer hack, showing the challenge of balancing blockchain rules with emergency intervention.
- Community reactions were mixed, with support for fund recovery but concerns over fairness and potential centralization of decision-making.
- Earlier, Berachain also managed to recover part of the stolen funds with a hard fork in a similar move.
Layer 1 blockchain network Gnosis Chain carried out a hard fork this week to recover $9.4 million stolen in the November 2024 Balancer hack. The attack had drained over $128 million across multiple blockchains, including Ethereum, Base, Polygon, and others, sending shockwaves throughout the decentralized finance (DeFi) ecosystem.
Gnosis announced on X that the funds are now “out of hacker control” and will move to a DAO-managed wallet. The community will decide how to handle compensation and distribution. The situation highlights the ongoing challenge of balancing blockchain rules with active intervention to address hacks.
The decision followed weeks of careful planning by contributors, validators, and other stakeholders. Philippe Schommers, Gnosis’s Head of Infrastructure, confirmed that the team had been working on a hard fork to create a technical path for fund recovery.
“The last step is crucial: a majority of validators must adopt the new binaries for the hard fork to succeed,” he explained. Validators now have 10 days to update their nodes, with penalties for those failing to remain in sync.
Technical execution and node updates
Gnosis Chain provided precise client updates required for the fork. Execution clients include Geth v1.16.7-gc.9, Reth v1.0.0 (requiring a full database resync), Nethermind v1.35.8, and Erigon v3.3.2. Consensus layer clients include Nimbus v25.11.1, Lighthouse v8.0.1, Teku v25.11.1, and Lodestar v1.37.0. The hard fork activated at 16:11:40 UTC on December 22, with the community emphasizing timely updates to ensure smooth execution.
Alongside, there are efforts by Gnosis to coordinate a post-mortem analysis of the exploit to ensure future preventive measures are clearly defined to maintain the neutrality of the network, though there are certain parameters of intervention that need to be clearly outlined. The approach taken by Gnosis represents a level of equilibrium in rectifying hacks to preserve the integrity of the blockchain.
Community mood and concerns regarding governance
The responses from communities were optimistic and guarded. Luca from Serenita, which controls a considerable amount of delegated stake, welcomed this and mentioned that they look to “return hacked funds to their owners.” Luca emphasized that rules need to be established to give clarity on whether hard forks, censorship, and other measures are to be taken.
However, not everyone in the community, such as MichaelRealT, was worried about precedent and fairness. For example, MichaelRealT argued that if every wallet hack deserves a hard fork, then this might pose a centralization of power in decision-making. “This method of a hard fork is a fundamental change in the ideology of immutability,” he noted.
Context of the balancer hack
The Balancer exploit drained approximately $128 million on November 3, 2024, according to Lookonchain. The post mortem of the attack revealed that it consisted of various crypto assets including wrapped ETH derivatives like WETH, osETH, wstETH, sfrxETH, rETH, and stablecoins including USDC and sUSDe.
Meanwhile, Layer 1 chain Berachain managed to recover part of the stolen funds, showing that coordinated efforts can help reduce risks in DeFi.
The Gnosis Chain hard fork shows how coordinated action can address issues in DeFi networks. It highlights the balance between following blockchain rules and making adjustments when necessary. The community was able to recover stolen funds while maintaining the network’s integrity.
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