Passwordless Login
Verify the human at the moment of login
Replace passwords and OTPs. Issue a session only when your backend can prove the authorized human approved this login now.
A login that unlocks money or data is worth proving, not just checking.
The Problem
Passwordless Does Not Always Mean Provable
Many systems can authenticate a user. Fewer can prove who approved a specific login attempt, at a specific time, with an audit trail your backend can trust.
Session = Authority
A login can be valid, then misused later. You still need proof for sensitive actions and re-authentication rules.
Shared Devices
Device biometrics are not the same as employee identity. You need user-to-device binding and action-time approval.
Remote Control & Automation
Malware and remote-control tools can operate inside a trusted session. Approval must be tied to the action itself.
How It Works
End-to-End Passwordless Login
The app collects approval. The backend enforces it. Yuthent provides the verification layer and signed proof.
Enrollment, once per person
Binding one human to one device, so every later login has something to check against.
- 01Your app → The person's phoneVerify who they are, once, to the standard your sector requires.
- 02The phone → Its own secure hardwareA key is created that cannot be copied off the device.
- 03Your backend → Your recordsOne person is now bound to one device. Nothing to remember, nothing to phish.
Every login you choose to protect
The session is issued on proof, not on a secret someone could have handed over.
- 01Someone → Your loginA sign-in is attempted, however they got there.
- 02The enrolled person → Their own phoneThey press. The key signs that this login, at this moment, was approved by them.
- 03Your backend → Your sessionIt verifies the signature and issues the session, or it does not.
Backend Enforcement
Your Server Is the Gatekeeper
The app should never be the source of truth. Your backend enforces login by verifying the approval with Yuthent.
Verify Before Session
Issue a session token only after the login approval is verified.
Signed Proof for Audit
Store proof references and decisions for audits and incident response.
No Biometric Data
Biometric data stays on the device. Your backend sees decisions and proofs, not biometrics.
See it on your own flow.
Your app, your call, our SDK.