Okay, kiddo, do you know what a photograph is? It's a picture we take with a camera, right? Well, sometimes people can use those pictures for bad things, like sharing pictures that are not appropriate or hurtful.
Photodna is like a special tool that can help find those bad pictures and stop people from sharing them more. It works by looking at the different colors and patterns in a picture and making a special code called a DNA. Just like your body has DNA that makes you unique, each picture has a DNA that makes it special too.
When people share pictures online, Photodna can scan them and compare them to pictures that are known as bad or hurtful. If a picture's DNA matches one of the bad pictures, people who work to keep the internet safe can take it down and stop it from spreading more.
So, Photodna is a tool made to help keep you safe and make sure people are using pictures in the right way. Pretty cool, huh?