According to Wu, Aperture Finance tweeted that their V3/V4 contracts were exploited due to a vulnerability. They have disabled core frontend functions to prevent new authorizations and are working with security partners to investigate the cause. Users are advised to immediately revoke all authorizations for the Ethereum mainnet contract address 0xD83d960deBEC397fB149b51F8F37DD3B5CFA8913. A post-incident report and further updates will be provided.