Cosmos Hub: 1.227 million ATOM has been recovered from the Neutron attack case, with funds temporarily stored at a 4/6 multi-signature address

Cosmos Labs disclosed that on September 22, Neutron encountered a governance attack that led to the theft of liquidity from protocols such as Astroport, with approximately 1.73 million ATOM subsequently transferred by the attacker to Cosmos Hub. The Cosmos Hub itself was not attacked, and user funds were not affected. To prevent the stolen ATOM from being transferred out, Hub validators temporarily paused the network for about 24.5 hours and resumed block production on September 23 based on the patched Gaia v28.3.0.

Cosmos Labs stated that during the pause, 1.227 million ATOM remained in the attacker's Hub address. When the network was restored, these were transferred to a 4/6 multi-signature address composed of Nansen, Keplr, Enigma, Silknodes, Kiln, and Polkachu through a one-time change. Previously, about 500,000 ATOM had been exchanged for ETH via THORChain and could not be recovered; another 169,000 ATOM entered the attacker's address after the network was restored due to THORChain refunds and were sold after being transferred to Osmosis. The current multi-signature address holds approximately 1.227 million ATOM, which can only be returned after authorization from a Cosmos Hub governance proposal. The related funds will not be staked, lent, or traded. The Neutron team expects to submit a recovery plan and related governance proposals next week.