Hackers Stole $1.7 Million Worth of NFTs from Users of OpenSea Marketplace

Malicious actors took advantage of a smart contract upgrade process in the OpenSea NFT marketplace to carry out a phishing attack against 17 of its users that resulted in the theft of virtual assets worth about $1.7 million.
NFTs, short for non-fungible tokens, are digital tokens that act like certificates of authenticity for, and in some cases represent ownership of, assets that range from