DataTerminology.comNEW
Verifying identity without passwords using public-key credentials, biometrics, or hardware-backed authenticators.
DESCRIPTION
Passwordless authentication replaces memorized secrets with stronger, phishing-resistant methods like FIDO2 passkeys and WebAuthn. Credentials are bound to devices and verified via public-key cryptography. User experience improves by eliminating password resets and reducing account takeover risk. Adoption requires compatible platforms, identity providers, and user device enrollment. Governance addresses recovery flows, assurance levels, and regulatory compliance for biometrics.
ALTERNATIVE DEFINITIONS
Microsoft Learn
Passwordless authentication methods replace passwords with something you have or are.
Emphasizes possession and inherence factors instead of knowledge factors.
FIDO Alliance
Passkeys are a replacement for passwords that are more secure and easier to use.
Highlights ease of use and security benefits of passkeys.
W3C
Web Authentication (WebAuthn) is a web standard that enables creation and use of strong, attested, scoped, public-key-based credentials by web applications.
Defines the web standard underpinning passwordless credentials.
RELATED TERMS
FIDO2 WebAuthn Passkeys Biometric Authentication Asymmetric Encryption Authenticator App Hardware Security Key Single Sign-On Multi-Factor Authentication Risk-Based Authentication
COMPETING TERMS
Password Authentication
RELATIONS
- Broader: Authentication
KNOWLEDGE AREAS
Data Security Software Engineering Cloud Data Privacy & Compliance
TARGET AUDIENCE
Security Architect Cybersecurity Engineer DevOps Engineer Software Developer Chief Information Security Officer IT Manager Application Administrator
EXTERNAL SOURCES
- Wikipedia - Passwordless authentication
- FIDO Alliance - Specifications for FIDO2 and passkeys
- W3C - WebAuthn Level 2 specification
- Microsoft - Azure AD passwordless overview
TOP QUESTIONS
What is Passwordless Authentication?
It authenticates users without passwords, using device-bound public-key credentials, biometrics, or hardware keys.
Category: Definition
Why is Passwordless Authentication gaining traction?
It improves security against phishing and reduces user friction from password resets and reuse.
Category: Relevancy
What technologies enable Passwordless Authentication?
FIDO2, WebAuthn, platform authenticators, hardware security keys, and biometric sensors.
Category: Requirements
What are common pitfalls in Passwordless Authentication rollouts?
Insufficient recovery options, limited device support, and poor user education impede adoption.
Category: Mistakes
How does Passwordless Authentication compare to MFA?
Passwordless can be single-step yet phishing-resistant via public-key cryptography; MFA adds layered factors to password-based login.
Category: Comparison
What risks remain with Passwordless Authentication?
Device loss and biometric spoofing risks require robust recovery and liveness detection.
Category: Risks
How is Passwordless Authentication managed in enterprises?
Use identity platforms supporting passkeys, enforce enrollment policies, and track assurance and recovery procedures.
Category: Management
Where to start learning Passwordless Authentication?
Read FIDO Alliance specs, W3C WebAuthn, and vendor implementation guides (Microsoft, Apple, Google).
Category: Learning
Is Passwordless Authentication compliant with regulations?
Yes, if privacy, consent, and biometric handling comply with applicable laws and internal policies.
Category: Compliance