Google Firebase Authentication

• Authentication, AAA, MFA, OpenID, OAuth, OATH, PAM, Personal access token, CWE: Broken Access Control, PAT, Mutual authentication, Federated authentication, IdP, Amazon Cognito, Phone to sign in, Firebase Authentication, Auth0, WebAuthn, Web3auth, Challenge-response, Passwordless authentication, HMAC, HOTP, TOTP, OATH