Justin Cappos is a professor in the Computer Science and Engineering department at New York University, who strives to provide service to society through technology. Justin's research philosophy focuses on solving real world security problems in practice. He and his students often focus on problems in security, systems, software update systems, and virtualization, with an emphasis on practical research advances that can be used in production.

His research advances are adopted into production use by Docker, git, Python, VMware, Cloudflare, Microsoft, Digital Ocean, automobiles, and most Linux distributions. Due to the practical impact of his work, Justin was named to Popular Science's Brilliant 10 list in 2013.