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SushiSwap approval bug leads to $3.3 million exploit
© Reuters.
A bug on a smart contract on the decentralized finance (DeFi) protocol SushiSwap led to over $3 million in losses in the early hours of April 9, according to several security reports on Twitter.
Blockchain security companies Certik Alert and Peckshield posted about an unusual activity related to the approval function in Sushi’s Router Processor 2 contract — a smart contract that aggregates trade liquidity from multiple sources and identifies the most favorable price for swapping coins. Within a few hours, the bug led to losses of $3.3 million.
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