The NIST 800-63 guidelines define identity proofing and enrollment processes that balance security, privacy, user experience and emerging threats like deepfakes while helping CSPs mitigate fraud risks. Furthermore, they emphasize data protection measures as well as user-friendly processes that prevent workarounds for customers.
IAL3 compliant solution
IAL3 is the highest level of identity proofing, requiring a verification process that ties a digital identity claimed with real world identities. This can be accomplished either remotely or on-site and may include using trusted attribute references as part of this verification process. HYPR's FIDO certified passwordless authentication solution meets IAL3 requirements while eliminating vulnerable and phishing-prone passwords from authentication processes.
Contrary to earlier editions, the 2025 revision of NIST 800-63A IAL3 moves beyond checklist-based requirements to prioritize stronger, phishing-resistant protocols while simultaneously creating a framework that balances risk with usability.
It outlines requirements for enrolling and verifying identities, such as process improvements, clear user experiences and scalable processes that reduce false positives. It allows agencies to select an Identity Verification Agent (IVA). Furthermore, this approach is intended to prevent highly scalable attacks such as automated enrollment attacks using compromised personal information or synthetic identity attacks as well as any threats posed to privacy and security.
IAL3 identity proofing
Identity Proofing in IAL3 involves verifying real-world attributes associated with an identity claim. This process may be undertaken remotely or on-site by a trained CSP representative and designed to prevent scaled attacks as well as evidence falsification and social engineering tactics that might use basic biometric methods like facial recognition with liveness detection and document verification.
Contrasting with IAL2, which only requires once-off verification, IAL3 provides ongoing assurance. Furthermore, this allows CSPs to offer authenticators securely tied to verified identities so as to prevent stand-in fraud.
NIST has established the IAL3 proofing process as an identity verification solution that meets minimum attribute requirements. A certified CSP representative interacts directly with applicants in order to confirm their identities, then enrolling them as subscribers with authenticators bound exclusively to them so that only authorized users may use them.
IAL3 verification
IAL3 verification is the ultimate level of IAL3 identity proofing and authentication, requiring in-person or remote identification proofing with stringent oversight using superior strength evidence from authoritative sources to validate claims against someone's digital identity. Successful solutions offering this level of NIST IAL3 service providers authentication deliver seamless user experiences as well as robust protections against sophisticated attacks like SIM swapping and MFA bypassing.
Remote verification of IAL3s may be conducted remotely and in real-time via an independent referee, providing cheaper and more secure verification than attending in person. However, socially engineered fakes could still undermine this IAL3 compliant solution so the CSP should put strict processes and procedures into place to prevent bypasses.
In-person IAL3 remains an effective way to verify applicant identities and thwart any possible phishing attacks, yet its application can be both costly and time consuming for remote users. Thankfully, new generations of technology are making IAL3 closer to users while simultaneously cutting costs and speeding deployment times.
IAL3 authentication
IAL3 authentication requires in-person identity proofing and extensive evidence validation, similar to having someone look over your identity documents in person but using secure equipment only available during certain hours and requiring biometric samples from you to compare with a reference image.
NIST 800-63A IAL3 2025 updates place more of an emphasis on strengthening phishing-resistant protocols and introduce a risk-based digital identity management (DIRM) framework that takes into account outcomes such as mission delivery, public trust and individual users' equity and privacy. Furthermore, this shift supports more streamlined attribute requests from CSPs by restricting what RPs request from them.
NIST IAL3 verification services provide a safe and cost-effective remote identity proofing process that's suitable for distributed workers while simultaneously cutting costs. Their cutting-edge solutions utilize technology-enhanced methods like multispectral UV light analysis for document forgery detection as well as facial recognition with liveness detection to confirm claimed identities in real life.
