TREE NEWS update: Cosmos Hub stopped producing blocks for about 25 hours after validators controlling more than one-third of total voting power halted their nodes to stop roughly 1.7 million ATOM linked to a Neutron governance exploit from being swapped cross-chain. The chain froze at block height 33,086,740 on Sept. 22, then restarted Sept. 23 at 12:00 UTC after over 67% of voting power installed Gaia v28.3.0, which moved 1,227,121 ATOM from the attacker’s address into a 4-of-6 community multisig.
Cosmos Hub Halts 25 Hours After Attackers Funneled 1.7M ATOM On-Chain
AI take
A coordinated one-third-plus validator shutdown to freeze attacker funds is a striking use of social consensus over protocol liveness, and it worked: the chain restarted with supermajority support for a patch that moved the recovered ATOM into community custody. The trade-off is that 25 hours of downtime and a forced state change set a precedent for validator-coordinated intervention, which matters for anyone treating Cosmos Hub as credibly neutral settlement. Whether this becomes an accepted emergency playbook or a one-off is the open question, along with how Neutron's own governance exploit is addressed.
Generated by AI for reference only.
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