Ankr bridge exploit drains $303K after reused Optimism deposit

Ankr's Ethereum bridge lost over $303,000 after five suspicious withdrawals tied to a previously redeemed Optimism deposit on November 9, 2026. The exploit appears to have reused a deposit that had already been redeemed, letting attackers drain funds from the bridge. Traders should watch ANKR and bridge TVL for further outflows, and treat cross-chain bridge security as an ongoing risk for DeFi tokens.