ELI5: Explain Like I'm 5

Keystroke logging

Keystroke logging is a way for someone to find out what you type on a computer. It's like a secret recorder that saves what you type so someone can read it later. They use special programs to do it, and it can happen without you knowing. It's not a good thing, because someone could use it to find out your passwords, or other personal information that you don't want anyone else to know.