Open-Source Multi-Factor Authentication Solutions (MFA) | Ory

Multi-Factor Authentication Solutions

Add multi-factor authentication to any app: TOTP, WebAuthn, passkeys, and SMS. Stop account takeovers without inflicting pain on your users or developers.

Relying only on passwords to protect sensitive information is dangerous. Ory's multi-factor authentication lets you guard access with passkeys, biometrics, and authenticator devices so a leaked password or lost laptop doesn't compromise your business.

Multi-factor authentication: the best defense against account takeovers

Multi-factor authentication stops 99.9% of attempted account takeovers in their tracks and keeps user data safe from malicious actors with the auth, audit, and recovery flows every security team needs.

Mitigate security risk

Over one billion passwords leak every year, and breaches are commonplace. Multi-factor authentication is the gold standard to protect your users and your company.

Passwordless MFA and second-factor methods

Choose from second-factor and passwordless methods: TOTP and authenticator apps, WebAuthn, FIDO2 security keys, passkeys, SMS one-time codes, and lookup secrets. Mix factors to fit each app's risk profile.

Adaptive enforcement

Choose where and when to enforce second-factor authentication based on threat modeling or user-account risk grading. Step up only when the risk warrants it.

Popular MFA Integrations

Turn on MFA in minutes — no code required

Enable passkeys, authenticator apps, SMS, and one-time codes by flicking a switch with the built-in Ory Account Experience or wire up the same multi-factor authentication flows through our SDKs and APIs.

More on multi-factor authentication

The case for device binding: what it actually protects

Most authentication proves someone holds the right credential, not which device they're holding it on. Device binding (also called device authentication) closes that gap: a private key generated in a phone's secure hardware, attested by Apple or Google, and used for step-up approval or full passwordless login via PIN or biometrics.

What Is Magic Link Authentication and How Does It Work

Magic link authentication sends a one-time login URL instead of a password. Learn how it works, where it fits, and how it compares to OTPs and passkeys.

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Building custom authentication is a trap. See why Ory delivers massive ROI, high security, and scalability. Focus on your product, not login flows.

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