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  2. Vouched Assure
  3. Step-up MFA

Vouched Assure: step-up MFA

Raise assurance when risk rises.

Some moments matter more than a login: a new device, a large transfer, a change of bank details. Vouched Assure adds a biometric step-up at exactly those moments, so the real account owner confirms the action with a live selfie.

Maya confirms a high-risk change with a selfieMaya changes the bank account her payments go to. Because the change is high risk, she confirms it with a live selfie that matches her enrolled identity. Confirm this changeUpdating your payment details Hold still, it only takes a moment Confirm with selfie ASSURE WORKFLOWStep-up MFA High-risk actionNew payment details Live selfieLiveness passed Matched to enrollmentSame person as at sign-up VERIFIEDChange approved

Why it matters

The riskiest moments come after sign-in.

An attacker who gets past login still has to make the change that pays. That’s where to put the strongest check.

One-time codes can be intercepted

SIM swaps and phishing pages capture the codes many MFA steps rely on.

$33M

awarded to a T-Mobile customer after attackers SIM-swapped his number, took over the codes sent to it and stole about $38 million in cryptocurrency.

Source: SecurityWeek, March 2025
1,000s

of organizations targeted in April 2025 by Tycoon 2FA, a phishing kit that captures one-time codes and session cookies as people sign in.

Source: Proofpoint, 2025

Sessions get hijacked

A valid session doesn’t mean the account owner is the one making the change.

700+

organizations reached in August 2025 with stolen Salesloft Drift tokens, letting attackers impersonate a trusted app and bypass multi-factor authentication.

Source: FINRA, 2025

Not every action needs the same check

Strong assurance at every click adds friction. At the moments that matter, it adds protection.

Where step-up belongs
  • A new device or location
  • A large or unusual transaction
  • A new payee or bank details
  • Changed contact or recovery details

How it works

A stronger check, only when it counts.

  1. Payment detailsWhere your payments goNEW BANK ACCOUNT•••• •••• 4821ACCOUNT NAMEMaya R.!Extra check neededSave changes

    A risky moment

    Your rules flag a high-risk action: a new device, a large transaction or a change to account details.

  2. Confirm this changeA quick selfie to approve itFace the camera in good lightTake a selfie

    A live selfie

    The person confirms it’s them in seconds, on the device they’re using.

  3. CheckingLiveness and matchMatching your enrolled identity

    Liveness and match

    Vouched confirms a live person and matches them to their enrolled identity.

  4. Change approvedNew payment details savedVERIFIEDDone

    The action proceeds

    Verified, the change goes through. Review or rejected, your flow holds it.

What you get

Assurance proportional to risk.

Biometric, not a code

A live selfie can’t be forwarded, phished or SIM-swapped like a one-time code.

Matched to enrollment

The person approving is compared with the person who signed up.

You choose the moments

Trigger step-up from your own risk rules, only where it’s needed.

Any device

Works on phones and computers, with a branded desktop-to-phone handoff.

Your brand

White-labeled in 15 built-in languages, inside your product’s flow.

A record of who approved

Every decision comes with the checks behind it, for your audit trail.

FAQ

Step-up MFA, answered.

Straight answers about step-up mfa with Vouched Assure.

Contact us with a question
What is step-up MFA?

Step-up MFA adds a stronger authentication check at the moment risk rises, rather than at every login. Examples include signing in from a new device, making a large transaction or changing account details.

What is biometric step-up authentication?

It makes the step-up check biometric. With Vouched Assure, the person takes a live selfie that’s checked for liveness and matched to the identity they established when they enrolled.

Why use a selfie instead of a one-time code?

One-time codes can be intercepted through SIM swaps or phishing pages, and they prove control of a device, not identity. A live selfie matched to the enrolled identity proves the account owner is present.

Can one-time passcodes be intercepted?

Yes. In a SIM swap, attackers move a victim’s phone number to their own SIM and receive the codes sent to it; T-Mobile was ordered to pay $33 million after one such attack, made public in 2025. Phishing kits such as Tycoon 2FA also capture codes in real time by sitting between the user and the real login page.

What is session hijacking?

Session hijacking is when an attacker steals the token or cookie that keeps someone signed in, then uses it to act as that person without logging in or completing MFA. In August 2025, stolen Salesloft Drift OAuth tokens were used to reach more than 700 organizations’ environments.

When should step-up be triggered?

At high-risk moments your rules define, such as a new device or location, a large or unusual transaction, a new payee, or changes to contact or payment details.

Does step-up replace our existing MFA?

No. It adds a stronger check at the moments that need it, alongside the authentication you already use for everyday sign-in.

How does Vouched confirm it’s the account owner?

The selfie is checked for liveness, so a photo, screen, recording or deepfake can’t pass, and matched to the identity established at enrollment with Vouched Verify.

What happens if the check fails?

Vouched returns a review or rejected decision with the checks behind it, and your flow holds the action instead of letting it through.

Can step-up MFA be white-labeled?

Yes. Colors, fonts, copy and images match your product, in 15 built-in languages.

How do I get started?

Talk to sales to set up step-up workflows for the moments that matter in your product.