Passwordless authentication: what changes for IAM teams now?

TL;DR: Identity-based passwordless authentication replaces shared passwords with cryptographic credentials, biometrics, OTPs, and hardware tokens to reduce phishing and credential-stuffing risk, while raising adoption, privacy, and integration questions, according to 1Kosmos. The real governance test is whether IAM teams can migrate identity assurance without creating new enrollment, recovery, and lifecycle blind spots.

NHIMG editorial — based on content published by 1Kosmos: identity-based passwordless authentication and its implications for digital identity protection

Questions worth separating out

Q: How should organisations roll out passwordless authentication without breaking access recovery?

A: Start with applications and user groups that can tolerate a structured rollout, then define fallback and recovery paths before broad adoption.

Q: Why does passwordless authentication improve security against phishing and credential stuffing?

A: Passwordless reduces the value of harvested secrets because there is no reusable password to steal and replay.

Q: What do security teams get wrong when they treat passwordless as only a user experience project?

A: They often underinvest in identity proofing, recovery, enrollment governance, and privacy controls.

Practitioner guidance

• Map passwordless methods to assurance levels Assign each method, such as platform authenticators, hardware keys, OTP, or biometrics, to a defined assurance level and use that mapping to decide where it can be used for workforce, customer, or privileged access.
• Design recovery before rollout Document what happens when users lose a device, fail biometric checks, or need emergency access, then test the recovery path as thoroughly as the primary login flow.
• Standardise on open authentication protocols Prefer FIDO2 and WebAuthn so application teams can reuse a consistent model across browsers, mobile devices, and mixed application estates.

What's in the full article

1Kosmos's full blog post covers the operational detail this post intentionally leaves for the source:

• Method-by-method implementation notes for biometrics, OTPs, hardware tokens, and platform authenticators
• Practical rollout guidance for mixed application estates, including legacy and modern environments
• Detailed discussion of user adoption, education, and accessibility considerations during migration
• Regulatory treatment of biometric and identity data under GDPR and CCPA/CPRA

👉 Read 1Kosmos's analysis of identity-based passwordless authentication →

Passwordless authentication: what changes for IAM teams now?

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