Gnosis Chain hard fork recovers $9.4M from the Balancer exploit in November

Source: Yellow Original Title: Gnosis Chain hard fork recovers $9.4M from November Balancer exploit

Original Link: Gnosis Chain executed a hard fork on December 22 to recover approximately $9.4 million frozen after the Balancer exploit in November.

The hard fork was activated at 16:11 UTC following a proposal approved by governance.

Validators who did not update their nodes faced penalties ranging from the suspension of staking rewards to possible cuts (slashing).

The decision sparked an intense debate within the crypto community about the principles of immutability of the blockchain.

What happened

Balancer suffered a $128 million exploit in November that affected liquidity pools on several networks, including Ethereum, Gnosis, and others.

The attack came from a rounding error in Balancer V2's Composable Stable Pools.

Gnosis Chain initially implemented a soft fork to freeze approximately 9.4 million dollars of stolen funds on its network.

The hard fork on December 22 was necessary to unlock and return these frozen assets to the affected users.

Philippe Schommers, head of infrastructure at Gnosis, stated in a governance forum post on December 12 that the team aimed to enable fund recovery before Christmas.

Approximately 28 million dollars were recovered by white hat hackers across all affected chains, and StakeWise DAO recovered about 19 million in osETH alone.

The Gnosis hard fork represents a part of the broader recovery efforts across the ecosystem.

Why it is important

The hard fork divided the community between those who praised accountability and those who questioned whether it violates the principles of “code is law”.

DeFi analyst Ignas warned that the soft fork had already compromised immutability regardless of the outcome of the hard fork.

Others argued that choosing not to act would demonstrate irresponsibility towards the affected users.

Schommers responded that the fork requires “relatively minor changes that do not affect the chain's history” and maintains fundamental immutability.

The GNO token fell by 3% to approximately 115 dollars after the announcement.

The precedent raises questions about when intervention in a blockchain becomes acceptable during security incidents.

Balancer attributed the vulnerability to a rounding error despite the protocol undergoing 11 audits conducted by four security firms.

The incident highlights the persistent tensions between user protection and the principles of decentralization in DeFi.