ELI5: Explain Like I'm 5

Fuzzing

Fuzzing is like playing a game with a computer where you try to find hidden problems just by randomly doing things. Just like how you might try to find hidden toys by looking under your bed or behind your dresser, fuzzing tries to find hidden problems in computer programs by doing all sorts of different actions and seeing how the program responds.

For example, a fuzzing tool might try to open a file, close the file, then open it again really quickly, over and over again. While it's doing this, it might change a few small things each time, like the name of the file or the way it's opened. The computer program being tested might work fine most of the time, but if there's a hidden problem with the way it handles files, the fuzzing might trigger that problem and make the program crash or do something it's not supposed to do.

Fuzzing is a really helpful tool for finding problems in computer programs before they become big issues that could hurt users or companies. Just like how you might tell your parents if you find a loose screw on your bike before it falls apart while you're riding it, fuzzing can help people find problems in computer programs before they cause big problems in real life.