Jonathan is the Chief Information Security Officer and Senior Vice President for Security Solution Architecture at Qualys. He has more than 20 years of experience in the cybersecurity industry, and his career spans operational CISO and infosec roles with the State of Colorado, Qualys, Optiv, and Microsoft. At Microsoft, Jonathan led the Detection and Response Team (DART), whose members responded to cyber security incidents around the globe ranging from cyber espionage initiated by nation-state actors to ransomware attacks.
Jonathan also serves as an advisor to several security startups and venture capital firms and supports the broader security community through his work with IANS. He is also an adjunct faculty member at Carnegie Mellon University, where he mentors and coaches those attending the CISO Executive Education Program. Jonathan is a frequent speaker at industry conferences such as Black Hat, RSA, and SANS and holds several industry certifications including the CISSP, OSCP, CCSP, and GCFA.