MakerDAO has approved and implemented a series of proposals yesterday, including a proposal to reduce the size of WBTC collateral. Under the proposal, the Core Vault will reduce WBTC-A DC-IAM (maximum collateral) from 500 million to 0, WBTC-B DC-IAM (maximum collateral) from 250 million to 0, WBTC-C DC-IAM (maximum collateral) from 500 million to 0, WBTC-C DC-IAM (maximum collateral) from 500 million to 0, WBTC lending is disabled in SparkLend, and WBTC LTV is reduced from 74% to 0%. The proposal states that the consolidation of WBTC collateral on Maker and SparkLend poses a higher risk due to the latent risk of a change in WBTC custody rights, and the above actions are taken to limit the growth of WBTC exposure.