I got it from a Folding Ideas video (the problem with nfts one)

But here’s a link actually detailing it https://www.gate.com/learn/articles/beware-of-unexpected-nfts-and-assets-in-your-wallet-they-could-steal-all-your-funds/7682

Edit: for those that haven’t seen the video it’s worth the 2 hour watch https://www.youtube.com/watch?v=YQ_xWvX1n9g