BTC fell below $ 49,000, falling 1.11% on one day.

Golden Financial announced that Whitehat Zb3 returned the "unreliable" to OpenZeppelin's TimelockController contract on August 21, 2021, and negatively affected the holding plans of the Immunenefi Vulnerability Bounty. The plan chose to remain anonymous and pay White Hat an undisclosed amount (including anonymous funds). OpenZeppelin donated $ 25,000 to White Hat and patched it for the safety of their community. . As far as I know, OpenZeppelin is just a big risk in open source smart contract libraries. The bug has been fixed in the affected areas and OpenZeppelin announced a new version of the contract to correct the bug. All tasks using the TimelockController require migration. Immunefi is the biggest bug for smart contracts and DeFi operations. (Average)