ELI5: Explain Like I'm 5

Collision attack

Hello! Today we're going to talk about a collision attack.

Do you know what happens when two cars bump into each other? That's what happens in a collision attack, but with computer stuff.

Imagine you have two treasure boxes. Each has a lock that keeps it safe. Now, imagine you use a special tool to try and figure out what combination of lock digits would open both boxes. That's what happens in a collision attack. A hacker tries to find a way to make two different pieces of information use the same "combination" and thereby access information they are not supposed to.

For example, if a website is sending you a message saying "Hello, your username is John", and there's another message that says "Hi, your password is 12345", a collision attack happens if someone finds a way to copy that message and make it look the same, but with a different password.

The reason a collision attack can be harmful is that it enables the bad guys to access information they are not supposed to. That's why it's important to have good security measures in place to protect ourselves against such attacks.