SEC threatens lawsuit against OpenSea, the world's largest NFT marketplace [https://www.thestreet.com/.image/t_share/MTk4NTA5NTg5Nzk0OTIzOTcx/opensea.jpg] SEC threatens lawsuit against OpenSea, the world's largest NFT marketplace The company announced it received a Wells Notice from America's top financial regulator. [https://www.thestreet.com/crypto/markets/sec-threatens-lawsuit-against-opensea-the-worlds-largest-nft-marketplace]