SushiSwap, a decentralized exchange, suffered a hack that resulted in a loss of $3.3 million due to a vulnerability in the RouterProcessor2 contract. At least one user was affected by the exploit. The exchange's CEO has urged users to revoke permissions on all blockchain networks. According to Kevin Pan, an analyst at Block Research, approximately 190 addresses approved the contract on Ethereum, and around 2,000 addresses on Arbitrum. To revoke permissions, users can use the service: https://revoke.cash/