A QR code that sends you to a different destination – lenticular and adversarial(mstdn.social)
512 points by zdw | 71 comments
A Mastodon post showing a QR code that resolves to different destinations depending on viewing angle or scanner, using lenticular and adversarial techniques.
![Screenshot of kyleormsby.github.io: Discrete Structures [pdf]](https://hn.urlbox.com/shots/renders/2026/2/18/604f86d9-5238-4e4f-8ad1-378c844b8ff9.jpg)





