Multi-factor authentication

Multi-factor authentication is like a security system for keeping your important information safe online. It means that when you log in to something online, like a game or an online store, you will have to provide more than one type of information to prove that you are who you say you are. For example, you might have to provide both a password (something you know) and a fingerprint scan (something you have). That way it's harder for someone to guess your username and password and get into your account. Think of it like having two locks on the door instead of just one. This makes it harder for "bad guys" to access your personal information!