Passcode

A passcode is a type of security method used to protect devices and services. It's similar to a password, but is restricted to a smaller character limit (around 4-8 characters), and its character set is usually limited to numbers 0-9. When entering a passcode on a smartphone or tablet, the virtual keyboard displays only numbers, so the user is aware the character set does not include letters and symbols. There are also visual cues to indicate how many characters complete the passcode. For these reasons, a passcode is less effective at securing a device than passwords when securing data.

Passcodes are used on padlocks to protect doors to restricted areas, and on smartphone lock screens when biometric security methods like fingerprint reading and face detection are unavailable. They can also be used to protect applications or features with access to sensitive information.

Biometric, Character set, Credential, Passphrase, Password, PIN, Security terms, Smartphone