Ryan Galluzzo
- Digital identity program lead in NIST's Applied Cybersecurity Division
- Author on SP 800-63-4, published August 2025
- Ran the public revision process that produced it
Bio
Ryan Galluzzo leads the digital identity programme in NIST's Applied Cybersecurity Division and is an author on SP 800-63-4, published in August 2025 after a multi-year public revision. He was previously a specialist leader at Deloitte working with federal agencies on identity.
Profile built from public NIST records.
Where their work shows up
Revision 4 had to answer questions revision 3 did not face: whether a synced passkey counts as a phishing-resistant authenticator at high assurance, how digital wallets and verifiable credentials fit into proofing, and how to write proofing requirements that do not exclude people without conventional documentation. Those answers shape federal procurement and, through it, a large part of the identity verification market. See NIST 800-63, passkeys, and identity verification vendors.
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