KBA vs. Biometrics in Remote Online Notarization

Remote online notarization depends on confirming that the person appearing on live audio-video is the individual named in the document. Identity verification protects the signer, the notary, and the receiving party.

The notary cannot bypass required identity verification. If a platform or governing law requires a specific identity-proofing step, the session cannot proceed until that step is completed successfully.

Knowledge-based authentication asks the signer a set of timed questions drawn from personal-history data sources. The signer must answer enough questions correctly within the allowed time.

KBA can be difficult for people with limited U.S. credit or public-record history, recent address changes, thin U.S. data footprints, or international residency. That practical difficulty does not make KBA obsolete, illegal, or irrelevant to every statutory framework.

Credential analysis reviews the signer’s identification document for indicators of authenticity and integrity. The platform may ask the signer to capture images of the credential and may inspect document security features, expiration details, and other authenticity and integrity indicators supported by the credential-analysis system.

Credential analysis is not the same as KBA and is not the same as biometric comparison. Many remote online notarization workflows use credential analysis together with another identity-proofing method.

Biometric verification may compare a live image or selfie to the photograph on the signer’s identification credential. Some platforms use this as part of identity proofing when the workflow and technology support it.

Biometrics can help when U.S.-oriented knowledge questions are a poor fit, but a biometric step can still fail because of lighting, camera quality, unsupported credentials, or other technical limits. Success is not guaranteed.

A RON platform’s configured identity path, a commissioned notary’s commissioning-state law, and an organization’s supported workflow are related but distinct.

One platform may emphasize KBA. Another may emphasize biometrics. A commissioning state may set minimum standards that platforms and online notaries must meet. An organization’s international process may choose a biometrics-first path for operational reasons even when another lawful method exists elsewhere.

Do not assume that one identity method applies nationwide or that every state uses identical online-notarization identity rules.

When a Florida-commissioned online notary acts under Florida law, Florida Statutes §117.265 requires remote presentation of a government-issued identification credential, credential analysis, and identity proofing when the principal is not personally known to the online notary.

Florida Statutes §117.295 authorizes the Florida Department of State to adopt standards for online notarization, including standards for identity proofing, credential analysis, remote presentation, and related technology. Until the Department adopts rules setting standards that are equally or more protective, §117.295 also sets interim minimum standards that include knowledge-based authentication with specified characteristics, credential analysis, and audio-video communication requirements.

That Florida example shows why KBA remains part of Florida’s published statutory framework for online notarization standards. It does not mean every session worldwide must use KBA, and it does not mean Florida’s statute specifically mandates biometric facial comparison for every remote online notarization.

The Florida Department of State’s Remote Online Notary Public page explains registration, education, and technology-provider requirements for Florida online notaries. It does not replace the statute text and does not itself create a nationwide biometrics mandate.

For eligible international signers, iRemoteNotary’s supported workflow is biometrics-first. International sessions generally rely on a supported government-issued photo ID, credential analysis, and biometric facial verification rather than treating U.S.-style knowledge-based authentication as the primary international path.

That is an operational platform-and-service workflow. It is not a statement that Florida law universally requires biometrics, that KBA is illegal, or that every domestic session uses the same method.

Read why international signers often have trouble with KBA on other platforms.

Learn when a foreign passport may be usable.

See whether a U.S. Social Security number is required.

A signer may fail because the ID image is unclear, the ID is expired, the name does not match, KBA questions cannot be generated or answered, biometric comparison fails, the signer has limited U.S. data history on a KBA-based workflow, or the platform does not support the signer’s credential type.

Preparation can improve the chance of a clean capture, but it does not guarantee approval.

Successful identity verification does not guarantee that a document is eligible for remote online notarization or that a recipient will accept the finished instrument. Notarization, witnessing, authentication, apostille processing, recording, and consular services remain separate processes.