Traditional login usually depends on passwords that users must create, remember, and reset. Passwordless authentication replaces that step with stronger methods such as facial recognition or device-based verification, which can improve convenience and reduce password-related risk. In embedded banking, the value is a shorter login journey that still supports secure access and a more usable customer experience.
How passwordless authentication changes the login experience
passwordless authentication removes the need for a user to type and remember a password. Instead, the login step is handled by a stronger authenticator such as a device-bound passkey, biometric unlock, or another verified possession-based method. In embedded banking, that usually means faster sign-in, fewer reset prompts, and less friction when a customer returns to a banking flow inside another app or platform.
The practical difference is not just convenience. Passwords are reusable secrets, so their security depends on user behaviour, storage hygiene, and phishing resistance. Passwordless methods shift the trust model away from something the user knows and toward something the user has, often paired with a local biometric check or device unlock to make the experience usable without weakening the access step.
For the customer, traditional login is a two-part burden: create the secret and protect it over time. Passwordless login is closer to a verification event than a memory test. That is why it is often described as a shorter journey, but the real improvement is that the authentication factor is less exposed to reuse, guessing, and credential capture.
Why traditional login is still common in embedded banking
Traditional login persists because it is universally understood, easy to support, and compatible with older systems and recovery processes. It also gives the product team a familiar fallback for account creation, device change, and exception handling. In embedded banking, that compatibility matters because banking journeys often sit inside non-bank apps, webviews, or partner environments where rollout constraints are real.
The downside is that passwords create ongoing operational work. Users forget them, reuse them, and reset them. Support teams must handle lockouts, password reset abuse, and account recovery, while the security team must manage phishing, credential stuffing, and weak password policies. The result is that traditional login often looks simple on the surface but carries hidden cost and risk across the full lifecycle.
Passwordless authentication changes that trade-off, but it does not remove operational complexity. Recovery, device loss, step-up checks, and enrollment quality become the critical control points. A strong embedded banking design treats those as core product and security requirements, not as edge cases to solve later.
What embedded banking teams must design for when they move to passwordless
Embedded banking introduces a trust boundary that is different from a standalone banking app. The sign-in method must work inside the host experience, but the bank still has to know who is authenticating, which device is in use, and how the session will be protected after login. That makes the design question less about “passwords or no passwords” and more about whether the authentication method is phishing-resistant, recoverable, and appropriate for the account risk.
Good implementations favor device-bound authenticators and clear assurance steps over SMS-style fallback paths. The user experience should stay short, but the bank still needs a reliable way to distinguish a legitimate device from a replayed secret or an abused recovery channel. Passwordless and Passkeys Guide is useful here because it explains how passkeys support phishing-resistant sign-in and why recovery design matters as much as the initial login flow.
Embedded banking teams also need to think about the broader identity journey, not only the first login screen. Account provisioning, re-enrollment, help desk recovery, and session protection are all part of the same trust model. That is why identity and access design for customer-facing banking journeys should be reviewed alongside platform controls, not treated as a pure UX choice. IAM and Identity Provider Buyer’s Guide is a useful reference when teams need to compare sign-in, federation, and recovery capabilities.
Risk and Threat Considerations
Passwordless reduces password-specific attack paths, but it does not eliminate account takeover risk. If enrollment, recovery, or device-binding is weak, attackers will shift to the easiest bypass route, often through social engineering, session theft, or compromised devices rather than direct password guessing. Embedded banking raises the stakes because a successful bypass can expose financial actions, personal data, and linked customer journeys.
Failure mechanism: Weak fallback authentication, poor device binding, or unsafe recovery can let an attacker impersonate the user even when passwords are removed from the flow. Phishing-resistant login helps only if the bank also constrains enrollment, step-up, and account recovery.
Impact: The customer experience may look simpler while the true risk moves to less visible control points. If those paths are not tightly governed, passwordless can still end in unauthorized account access, fraudulent payments, or support-channel abuse.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
NIST SP 800-63, NIST SP 800-53 Rev 5 and OWASP ASVS set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST SP 800-63 | Digital Identity Guidelines | Covers phishing-resistant authentication and authenticator assurance for passwordless sign-in. |
| Recommendation — Use authenticator assurance and phishing-resistant options to replace password-only login. | ||
| NIST SP 800-53 Rev 5 | IA-5 — Authenticator Management | Covers lifecycle and protection of authenticators used in passwordless and fallback access. |
| Recommendation — Manage authenticator issuance, rotation, revocation, and recovery paths tightly. | ||
| OWASP ASVS | V6 — Authentication | Defines application authentication requirements, including stronger sign-in and recovery controls. |
| V10 — OAuth and OIDC | Relevant where embedded banking uses federation or delegated sign-in under the hood. | |
| Recommendation — Verify passwordless flows, fallback paths, and recovery checks against V6. Validate federated login and token handling when embedded banking relies on identity federation. | ||
Practitioner Guidance
What to prioritise: Treat recovery and re-enrollment as the highest-risk parts of the passwordless design. If a customer can lose a device, change devices, or call support to regain access, those journeys need stronger verification than the day-to-day sign-in path.
What to verify: Confirm that the chosen method is truly phishing-resistant and that the host app or embedded surface does not force the user back into a weaker fallback too often. If the “passwordless” flow still depends on passwords, SMS codes, or easy-to-abuse resets, the security improvement is smaller than the UX improvement.
Practitioner takeaway: In embedded banking, passwordless is best judged by the quality of its fallback and recovery controls, because that is where account takeover risk usually reappears.
Related resources from NHI Mgmt Group
- What is the difference between passwordless authentication and traditional password-based login for mobile apps?
- What is the difference between passwordless authentication and traditional MFA?
- What is the difference between traditional MFA and passwordless authentication?
- What is the difference between passwordless login and cross-device authentication?
