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Authentication
Authentication is the process of confirming the identity of users or devices before allowing access to resources or systems. This process ensures that only authorized individuals or entities can interact with sensitive data or systems, protecting against unauthorized access. Standard authentication methods include passwords, biometrics (such as fingerprint or facial recognition), multi-factor authentication (MFA), and single sign-on (SSO). Passwords are the most traditional method, requiring users to enter a secret code. Biometrics use unique physical characteristics for identification. MFA combines multiple authentication factors, like something you know (a password) and something you have (a phone). SSO streamlines access by allowing users to log in once and gain access to multiple systems without re-entering credentials. Authentication is a critical security measure that forms the first line of defense in protecting digital assets.