Nick Chen, a student at Shanghai Tongji University, lost access to a rare NFT worth 200 ETH (~$507,000).  

He reported this on the Discord server, according to the South China Morning Post.  

According to Chen, fraudsters managed to steal the Doodles collection token with just one fraudulent link. However, he didn't elaborate on exactly how the theft took place. 

According to him, the attackers quickly resold the token to an unaware buyer on the OpenSea Marketplace. 

Chen tried to buy back the stolen NFT from the new owner, who was unaware of the fraud, but was turned down.  

He said he didn't want to lose the asset after "such a lucrative deal." 

However, the student said he had no intention of stopping to negotiate after OpenSea froze operations.