Information security is about keeping people's information safe on the internet. Think of it like a house with a lock on the door. Just like people use a lock to keep their house and belongings safe, information security is used to keep personal information and data safe on the internet. Companies and websites use special codes and locks to keep information safe, so that only people who have the special key or code can access it. It also helps to protect people from thieves and hackers who might try to hack into databases and steal private information.