Optimism-based NFT Marketplace Quixotic Suffers Exploit

Quixotic, the largest NFT marketplace on Optimism network shared that a recent update to its contract was exploited. This enabled the hacker to steal approved ERC-20 tokens. While the NFTs appear to be safe on the platform and not affected by the exploit, Quixotic has paused all the marketplace activities related to the platform with the exploited contract permanently paused. Additionally, the platform has vowed to refund all the stolen ERC-20 tokens and assured that users will automatically receive their refunds over the coming days. We can confirm that a recent update to our marketplace contract was exploited, allowing a hacker to steal approved ERC-20 tokens 1. We will be refunding all stolen ERC-20 tokens2. NFTs remain safe and are not affected by the exploit3. All marketplace activity remains paused https://t.co/wBYt903QVO — Quixotic 🔴✨ – Optimism NFT Marketplace (@quixotic_io) July 1, 2022 Besides being the largest NFT marketplace on Optimism, Quixotic is also a layer 2 scaling solution for Ethereum. With an average transaction fee of just 0.0005 ETH ($1.50), the platform has already saved users an estimated $2 million in gas fees to date, according to data from DappRadar. XCarnival Recently Suffered Similar Attack Earlier this week, XCarnival, an Ethereum liquidity provider and an NFT lending pool, lost approximately $4 million after a hacker exploited a flaw in its smart contract functionality. The company decided on ...