OpenSea | Breaking Cybersecurity News | The Hacker News

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 expensive illustrations to collectibles and physical goods. The opportunistic social engineering scam  swindled the users  by using the same email from OpenSea notifying users about the upgrade, with the copycat email redirecting the victims to a lookalike webpage, prompting them to sign a seemingly legitimate transaction, only to steal all the NFTs in one go. "By signing the transaction, an atomicMatch_ request would be sent to the attacker contract," Check Point researchers  explained . "From there, the atomicMatch_ would be forwarded to the OpenSea contract," leadi...

A now-patched critical vulnerability in OpenSea, the world's largest non-fungible token ( NFT ) marketplace, could've been abused by malicious actors to drain cryptocurrency funds from a victim by sending a specially-crafted token, opening a new attack vector for exploitation. The findings come from cybersecurity firm Check Point Research, which began an investigation into the platform following public reports of stolen cryptocurrency wallets triggered by free airdropped NFTs. The issues were fixed in less than one hour of responsible disclosure on September 26, 2021. "Left unpatched, the vulnerabilities could allow hackers to hijack user accounts and steal entire cryptocurrency wallets by crafting malicious NFTs," Check Point researchers  said . As the name indicates, NFTs are unique digital assets such as photos, videos, audio, and other items that can be sold and traded on the blockchain, using the technology as a certificate of authenticity to establish a ver...