The Security of Marketplaces for NFTs

There’s a buzz around NFTs, and for the first time in history, we can create a digital proof of the ownership, copyright or creator of an artefact using a cryptographically signed token. Basically, it’s all part of the tokenization of data, and where data now covers physical assets.

And so, I’ve been reading this paper, and which tries to understand the key security risks in using NFTs:

For this, they analysed the eight top NFT marketplaces, including OpenSea, Axie, CryptoPunks, and Rarible. We can see that OpenSea is by far the largest in training volume, the number of assets and the number of events:

The OpenSea site is currently [here]:

In terms of the largest sales, we see that Beeple’s and CryptoPunks are top sellers, along with Tim-Bernes Lee’s original Web code: