ELI5: Explain Like I'm 5

Hardware-based full disk encryption

Hardware-based full disk encryption is a way to keep your information secure on a computer or other device. It works by encrypting all the data stored on the hard drive, which means it's turned into a secret code that can only be read if you have the secret password. The encryption happens automatically, so you don't need to think about it. It also helps to protect against people who might try to break into your device and steal your data.