Haris Pylarinos
Founder and CEO
Cyber readiness platform that trains and tests both security teams and AI agents
Hack The Box is a cybersecurity workforce development and cyber readiness platform used to upskill, assess and benchmark security professionals and, increasingly, AI agents. Its offerings include an enterprise platform with capture-the-flag, threat range and crisis simulation exercises, talent search, the HTB Academy courses, more than 1,500 hands-on labs, and AI Range for appraising AI agents on real security work. The company says it has more than 800 enterprise customers and a community of more than 4 million cybersecurity professionals. Haris Pylarinos is founder and CEO. It raised a $55 million Series B led by The Carlyle Group in 2023, and on October 6, 2026 launched AI Range Enterprise Edition.
Founder and CEO