A hacker under the pseudonym Monsieur Personne claims that he was able to create fake copies of a non-exchangeable token (NFT) tied to the Beeple painting "Everydays: The First 5000 Days" (Everydays: The First 5000 Days). In early March, this NFT token was sold by the Christie's auction house for a record $69.3 million. The author of the counterfeit tokens claims that he wanted to show the unreliability of NFT technology.

Monsieur Personne created his own tokens in the Ethereum blockchain, but they are not proof of ownership of the auctioned painting. The fake tokens, according to the hacker, are nearly identical to the original and were even issued by the same wallet.

The hacker claims that the original creator of NFT can only verbally promise not to issue the same tokens again, but in fact he can issue as many new tokens as he wants. Monsieur Personne is selling nine copies of the fake token, and plans to raffle off the very first fake NFT among their buyers.