Apostol Vassilev is a research team supervisor in the Computer Security Division at NIST. His team’s research agenda covers a range of topics in trustworthy AI and cybersecurity. Vassilev works closely with academia, industry and government agencies on the development and adoption of standards in artificial intelligence and cybersecurity and contributes to national and international standards groups. Vassilev holds a Ph.D. in mathematics from Texas A&M University. He has authored over 50 scientific papers and holds five U.S. patents. Apostol enjoys life with his wife. They are empty nesters, and when Apostol is not working, they enjoy hiking together in nature, taking care of and playing with their cat and dog, and pursuing environmental causes.