Mary Theofanos is a computer scientist with NIST’s Material Measurement Laboratory where she performs research on usability and human factors of systems. Mary is the project lead for the Public Safety Communications Research (PSCR) usability effort evaluating human factors and usability of PSCR technology. She is the program manager responsible for developing standards for usability. She represents NIST on the ISO JTC1 SC7 TAG and is convener of WG 28 on the usability of software systems. She is the principal architect of the Usability and Security Program evaluating the usability of cybersecurity and biometric systems.