AI 服务暂时不可用，以下为来源正文，待恢复后补全翻译。
Ryan is the Digital Identity Program Lead for the Applied Cybersecurity Division at the National Institute of Standards and Technology (NIST). In this role he coordinates digital identity projects, initiatives, and efforts to advance NIST’s standards & guidance and drive foundational research to promote innovation in digital identity. He has contributed to multiple NIST Special Publications including NIST SP 800-63 Digital Identity Guidelines. Prior to joining NIST, Ryan was a Specialist Leader at Deloitte & Touche where he spent over 10 years providing cybersecurity and identity management subject-matter insights to multiple federal agencies, including the Internal Revenue Service (IRS), the General Services Administration (GSA), and NIST.