According to CoinMeta, Cosmos Labs revealed that on September 22nd, Neutron suffered a governance attack, resulting in 1.73 million ATOM being transferred to Cosmos Hub. After the network was restored, 1.227 million ATOM were transferred to a multi-signature address managed by Nansen, Keplr, Enigma, SilkNodes, Kiln, and Polkachu. Approximately 500,000 ATOM had already been exchanged for ETH and could not be recovered, and another 169,000 ATOM were transferred to Osmosis for sale. The current 1.227 million ATOM held by the multi-signature address can only be returned after the governance proposal authorized by Cosmos Hub is executed.