
One Time Password: Face the Future of Access.
Seamless security, one code at a time.

With IDnow’s One-Time Password (OTP) authentication, you can add an extra layer of security to critical moments like onboarding, signing and sensitive account actions without slowing down your users. Delivered instantly via SMS, OTPs ensure your users are who they say they are, right when it matters most.
Whether you’re verifying a phone number, activating a digital signature or adding step-up security to your flows, OTP is a trusted tool for real-time authentication. It’s fast, familiar and frictionless, making it easy for genuine users to prove their identity, while blocking bad actors at the door.
How we authenticate using SMS:
Here’s how we harness the power of single-use, time-limited codes to verify possession and intent at critical moments.
Reality Check: Security in Action
A fraudster tries to onboard with someone else’s phone number. The real user receives the OTP, while the imposter is left out – access denied, risk averted.
Reality Check: Security in Action
A user initiates a qualified electronic signature. Before the process completes, they must enter the OTP sent to their phone. Only the true owner can finish the signing – protecting against remote fraud.
Reality Check: Security in Action
A customer completes identity verification and is ready to sign. Since strong identification just occurred, the OTP step is skipped, speeding up the experience, without sacrificing security or compliance.

Why businesses choose IDnow One-Time Passwords:
Instant, familiar and user-friendly: no extra apps or hardware
Time-limited, unique codes for maximum security
Effortless integration into any onboarding, signing or authentication flow
Fully compliant with regulatory requirements
Designed for seamless, secure digital experiences at scale

Security That Moves at Your Speed.
OTPs are the fast, proven way to add certainty to your digital world, blocking fraud, verifying users and powering trust in every interaction. With IDnow, you never have to choose between security and user experience.
Built to work in your world.
Integrate OTP Authentication into your existing workflows with minimal effort. Whether you need an SDK, an API or orchestration through the IDnow Trust Platform, we provide scalable, privacy-first identity authentication that meet the needs of modern digital businesses.

One Time Password: Instant Codes, Instant Confidence.
Empower your business with authentication that’s as swift as it is secure. IDnow’s OTP lets you quickly verify users when it matters most, keep fraudsters out and deliver digital experiences that build real trust, every time.
Discover how a single code can make all the difference.
