OKX DEX, a decentralized exchange and cross-chain bridge aggregator, experienced an exploit that resulted in approximately $370,000 worth of authorized wallets on the platform being lost. The exploit was related to the authorization process during exchanges on the platform, specifically involving the TokenApprove contract and the DEX contract's claimTokens function. The exploit occurred when the Proxy Admin Owner upgraded the DEX Proxy contract, allowing attackers to make unauthorized calls and steal tokens. The Proxy Admin Owner's private key may have been leaked, leading to the attack. OKX confirmed that 18 addresses authorized for the contract were hacked, but all user assets have been deemed safe, and the affected contracts have been deactivated. Additionally, the exchange pledged to compensate the affected users. In other news, OKX has seen a growing market share, along with Upbit and Bybit, while Binance, BeQuant, and Crypto.com have experienced declines in market share. OKX and Bybit also saw increases in derivatives market share, while Binance saw a decline in derivatives market share.
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