Trusted credentials and verified identities are not the same thing. IAL3 identity verification is the standard that separates them, and most enterprises have never met it.
Multi-factor authentication has become the default answer to access risk. Device-bound credentials, session tokens, push notifications, FIDO authenticators, these tools have matured significantly, and the organizations deploying them deserve credit. The problem is not MFA. The problem is what MFA is asked to do, and what it cannot do alone.
Every MFA platform performs the same essential function at runtime: it confirms that a known credential, bound to a known device, is being presented in a valid session. That is a meaningful security control. It is not identity validation. At the moment of authentication, the MFA platform validates the credential. It does not, on its own, validate that the credential is in the hands of the person to whom it was originally issued.
Strengthening MFA, then, is not a matter of layering on more factors. It is a matter of raising the assurance of two things: the identity behind the credential, and the binding between them. Both improvements are within reach for organizations operating under NIST SP 800-63 guidance.
Why IAL3 Identity Verification Replaces IAL2 for High-Risk Access
NIST SP 800-63 defines three identity assurance levels. Most enterprises today operate at IAL2, remote, evidence-based proofing that establishes identity with moderate confidence. IAL2 is appropriate for many use cases. It is not appropriate for environments where the consequences of a fraudulent enrollment would be material: privileged access, regulated transactions, sensitive federal workloads, or any role where impersonation translates directly into operational harm.
IAL3 is high-assurance proofing. It requires in-person or supervised remote proofing, presentation and validation of strong evidence, biometric capture bound to the individual, and a verifiable chain from identity document to digital credential. It is not a stricter version of IAL2. It is a different category of assurance, one designed to survive audit and adversarial scrutiny.
For MFA to enforce trust an organization can actually rely on, the identity sitting underneath the credential needs to be established at the assurance level the access decisions assume. In most enterprises today, it is not.
Bind Identity and Credential in a Single Trusted Session
The second improvement is less widely understood, and in practice it matters as much as the assurance level itself.
In most enterprises, identity proofing and credential issuance are run as two separate workflows, often at different times, in different systems, by different operators. An employee is proofed during onboarding. Some days, weeks, or months later, through a different process, they are issued a credential and enrolled into MFA. The two activities are sequenced, but they are not bound.
The consequences are subtle and important. Because the proofed identity and the issued credential never meet in the same trusted session, the binding between them is inferential. The organization assumes that the person who completed proofing is the same person who later received the credential. From that moment on, every authentication validates the credential. None of them validate that the credential is in the right hands, because that binding was never established under controlled conditions in the first place.
A single-session model corrects this. Identity proofing and credential issuance occur together, in one supervised session, with biometric capture, document validation, and credential binding executed as one continuous, attested workflow. The output is not a proofed identity and a separately issued credential. It is a credential cryptographically and biometrically bound to a specific, validated person under a single trusted event.
At every subsequent authentication, that binding is preserved. The credential and its true owner are validated together, not the credential alone.
A Proofed Identity Is Not a One-Time Event
High-assurance identity is anchored at enrollment, but it does not end there. A credential holder’s risk profile changes over time. Roles change. Devices are lost. Credentials are compromised. Biometric characteristics drift. Adversaries refine their techniques. An identity proofed three years ago and never re-validated is not the same assurance asset it was on day one.
Continuous identity monitoring is the discipline of treating the proofed identity as a living state rather than a one-time event. The credential holder remains trusted at high assurance only as long as the conditions that justified that trust continue to hold. When they don’t, the identity layer, not just the MFA layer, needs to respond.
Biometric Re-Collection at the Right Moments
A specific element of that continuous discipline is biometric re-collection. NIST SP 800-63 requires that biometric evidence be refreshed at defined intervals and at specific lifecycle events, including:
- Lost or compromised credentials. A replacement credential issued without re-collecting biometrics and re-binding them to the credential reintroduces the same separation-of-sessions gap that single-session enrollment was designed to close.
- Credential renewal. Renewal is the natural moment to re-confirm that the person presenting for renewal is the same individual originally proofed, and that current biometric samples match the enrolled reference.
- NIST-specified intervals. NIST guidance requires periodic biometric refresh independent of any triggering event, recognizing that biometric reference data ages and that reaffirming the binding at defined intervals is what preserves assurance across the full lifecycle of the identity.
In each case, the same architectural principle applies as at initial enrollment: the re-collection should occur in a single trusted session that re-binds the credential to the validated person. Anything less reverts the relationship between identity and credential to inferred, not established.
The Net Effect
MFA is not the weak link in modern identity architecture. It performs the function it was built for. The opportunity is to give it a foundation that justifies the trust it enforces, an identity proofed at IAL3, bound to its credential in a single trusted session, and maintained through continuous monitoring and disciplined biometric re-collection at the moments NIST specifies.
When IAL3 identity verification anchors the identity layer, MFA enforces trust that has actually been earned. When it is not, MFA is enforcing the wrong assumption with high confidence, which is the most expensive kind of security to operate.
NextgenID is a high-assurance identity infrastructure company recognized by Inc. as one of the fastest-growing companies in the Mid-Atlantic. We build the compliance-grade identity foundation that federal agencies and enterprise organizations rely on when the assurance level actually matters. Learn more at nextgenid.com or reach out to schedule a solution briefing.
