Cosmos Hub proposal for ATOM refund faces 95% veto vote

The Cosmos Hub community just delivered one of the most decisive governance rejections in recent memory. Proposal #1056, which sought to refund approximately 1.2 million ATOM to the wallet of a Neutron protocol attacker, drew a staggering 94.64% “NoWithVeto” vote, the harshest possible rejection mechanism in Cosmos governance.

The attack that started it all

On September 22, 2026, an attacker exploited governance vulnerabilities within the Neutron protocol. By spending roughly 20,199 USDC to purchase approximately 31.6 million NTRN tokens, the attacker gained controlling rights over 10 to 11 protocol contracts.

The total estimated impact of the attack reached approximately $9.4 million. Around $5 million remained trapped on the halted Neutron protocol, while about $2.1 million worth of ATOM had already been bridged over to the Cosmos Hub through an interchain exploit.

Validators responded by halting the Cosmos Hub at block height 33,086,740, a drastic measure that kept the network offline for roughly 25 hours. When operations resumed on September 23, validators executed a one-time state-level change, transferring 1,227,121 ATOM from the attacker’s reach into a multisig address for safekeeping.

The proposal nobody wanted

Proposal #1056, titled the “ATOM Refund & Justice Bounty,” called for returning the seized 1.2 million ATOM to the attacker’s wallet and proposed a 500,000 ATOM bounty to be distributed among voters who supported the proposal.

The voting period ran from September 23 through September 30. Of the voting power that participated, approximately 63.4 million ATOM’s worth cast “NoWithVeto” ballots, accounting for 94.64% of all votes. Another 4.02% abstained, 1.08% voted a standard “No,” and just 0.25% voted “Yes.”

In Cosmos governance, a “NoWithVeto” vote carries extra weight. If more than 33.3% of participating votes are vetoes, the proposal’s deposit is burned rather than returned. This proposal cleared that threshold nearly three times over.

Overall turnout reached only 19.94%, well below the 40% quorum required for a proposal to pass. So even if every single voter had somehow flipped to “Yes,” the proposal still would have failed on procedural grounds.

What the veto says about Cosmos governance

The fact that an attacker could spend roughly $20,000 to compromise contracts worth $9.4 million highlights an asymmetry in interchain governance models. Governance tokens that are cheap enough to accumulate in bulk can become attack vectors rather than protective mechanisms.

The roughly $5 million still sitting on the halted Neutron protocol remains an open question. Recovery efforts for those funds will likely require separate governance actions and cross-chain coordination.

Disclosure: This article was edited by Estefano Gomez. For more information on how we create and review content, see our Editorial Policy.