A while ago I wrote about storing two bytes inside my mouse's DPI register. It wasn't useful. It wasn't practical. But it did something unfortunate to my brain. Once you've successfully hidden data somewhere it doesn't belong, you start looking at everything as potential storage. A monitor is storage. A keyboard is storage. A BIOS splash screen is (maybe) storage. A favicon is storage. And yes, here we are. Every website has a favicon. It's that little icon in your browser tab. Usually you upload it once and then never think about it again. But. A favicon is just an image. An image is just pixels. And pixels are just bytes. So of course I wondered if I could store something inside one. The idea My first thought was steganography. Steganography is basically about hiding data in an image without making it obvious. You take a perfect normal photograph and modify a few bits so it secretly contains a message. The favicon itself (at least in my demo) doesn't need to look like an icon. It could become pure storage.…