Sarah C. Villarmarzo, MA, PMP, CISSP is Identity Standards Lead at the National Institute for Standards and Technology (NIST). She has over 15 years of experience with digital identity transformations and standards development, spanning enterprise identity management, zero trust, risk management, and cybersecurity compliance. At NIST, she manages the SP 800-63-4 Digital Identity Guidelines and leads engagements on age assurance technology, post-quantum smart card enhancements, and ISO/IEC standards. Ms. Villarmarzo holds an Adopting Zero Trust certificate from Forrester along with ITIL, Agile, and SAFe certifications. She has also been recognized for her community service work, winning the Heroines of Washington Rising Star award for her program to build community digital literacy in Washington DC.