The login form is dying. Passwordless authentication with single sign-on (SSO) is taking its place.

Modern systems need speed, security, and scale. Password-based logins fail on all three. They breed credential stuffing, phishing, and reset loops that waste hours and expose data. Passwordless authentication removes the weak link. With SSO, it collapses the identity process into one secure workflow across all apps.

Passwordless SSO uses cryptographic methods like WebAuthn, magic links, or hardware keys to verify users without storing secrets that can be stolen. Combined with an identity provider (IdP), authentication happens once, then propagates through all authorized systems. No more repeated logins. No more shared passwords in spreadsheets.

The architecture is straightforward. A user signs in through the IdP using a passwordless method. The IdP issues a secure token via OpenID Connect or SAML. Each connected service checks this token with minimal overhead. This cuts attack surface while making authentication almost invisible to end users.

Engineering teams deploy passwordless SSO to strengthen security compliance, eliminate credential management costs, and streamline onboarding. It integrates cleanly with cloud-native stacks, SaaS apps, and internal tools. It supports granular access control, adaptive authentication policies, and detailed audit logs.

Passwordless authentication combined with single sign-on is not a luxury feature. It is now a baseline requirement for secure, frictionless identity.

See how simple it can be. Try passwordless SSO at hoop.dev and watch it go live in minutes.