Wu said that Aevo (formerly Ribbon Finance) confirmed that the historical Ribbon DOV vault was attacked yesterday due to a vulnerability in an smart contract update, resulting in a loss of approximately $2.7 million. The official stated that all Ribbon vaults have been immediately halted and will be officially taken offline. Users need to withdraw their funds through the standard process after completing the contract upgrade. The related contract upgrade is expected to go live next week and will be announced separately. Aevo disclosed that the attack caused about 32% of the vault's actual loss, but the DAO proposed that user withdrawals be executed at a 19% discount. The claim window is from December 12 to June 12. After the deadline, remaining assets will be liquidated and redistributed to users who have already withdrawn, covering up to the remaining losses.