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CPT Glossary

Authentication

Type
Description
What is the difference between authentication and authorization?
Authentication verifies who you are; authorization determines what you're allowed to do. Learn the difference, the order they happen in, and why both matter.
What is passwordless authentication?
Passwordless authentication verifies users without a password, using passkeys, biometrics, or possession-based factors.
What is authentication?
Authentication is the process of verifying that someone (or something) is who they claim to be before granting access.
What is voice authentication?
Voice authentication verifies identity using a person's unique voiceprint, often in call centers. Learn how it works and why generative AI threatens it.
What is TOTP (time-based one-time password)?
TOTP is a time-based one-time password generated by an authenticator app from a shared secret, refreshing every 30 seconds.
What is a one-time password (OTP)?
A one-time password (OTP) is a temporary, single-use code used to verify identity, often as a second factor.
What is magic link authentication?
Magic link authentication logs users in via a unique, single-use link sent to their email instead of a password.
What is face authentication?
Face authentication verifies identity using facial recognition, often to unlock a device-based passkey.
What is biometric authentication?
Biometric authentication verifies identity using physical or behavioral traits like fingerprints, face, or voice.
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