On May 31, the Cosmos team said it found a serious security hole in the Cosmos SDK. PeckShield security analysts found that the original Cosmos mortgage had to wait 21 days to redeem, but there was a logical flaw in the status of the Validator in the contract code, allowing users to reduce the 21-day fixed redemption time and redeem the mortgaged digital assets in advance. . This will allow many speculators to earn interest by repeating mortgage assets in a shorter period, undermining the overall PoS consensus and causing more serious negative effects.