NFT marketplace OpenSea has launched an investigation due to "rumors of an exploit" related to its smart contracts.
The company has reported that it is a phishing attack, so no vulnerability has been found in the platform:
"We are actively investigating rumors of an exploit associated with OpenSea related smart contracts. This appears to be a phishing attack originating outside of OpenSea's website. Do not click links outside of opensea.io."
Last Friday, February 18, the OpenSea smart contract was rebooted. The goal of this move was to remove old offers to sell NFTs from the platform and to fix a vulnerability that allowed the purchase of some tokens at prices many months old, even if they were not displayed in the marketplace interface.
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On February 19, reports surfaced online about the theft of tokens from users of the platform. There were rumors of a $200 million hack, however, OpenSea co-founder Devin Finzer denied this information. According to him, the attacker's address contains $1.7 million in ETH, which he received from the sale of part of the stolen NFTs.