A critical vulnerability in OpenSea, the world’s largest non-fungible token marketplace, could’ve been abused by malicious actors to drain cryptocurrency funds from a victim by sending a specially-crafted token. The vulnerability was fixed in less than one hour of responsible disclosure on September 26, 2021. 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 verified and public proof of ownership.”]
Source: https://thehackernews.com/2021/10/critical-flaw-in-opensea-could-have-let.html