William Spettmann
SecurityInsecurity President, University Professor, and Career Mentor
New York City, New York, United States
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William H. Spettmann III is a TS/SCI-cleared Cloud CISO, cybersecurity executive, and university professor with over 17 years of experience leading enterprise security strategy across defense, healthcare, and financial services. He has directed multi-million-dollar cybersecurity and compliance programs, overseen complex federal frameworks including RMF, FedRAMP, HIPAA, and CMMC, and currently leads enterprise risk initiatives and system accreditations across multiple classification levels. As the founder of SecurityInsecurity, he advises organizations on cybersecurity strategy, incident response, and regulatory compliance, helping them reduce risk while enabling secure growth.
A dynamic and experienced public speaker, William has taught more than 50 university courses and delivered numerous guest lectures on cybersecurity, risk management, and emerging technologies. He is known for breaking down complex technical and regulatory topics into clear, actionable insights for both technical and non-technical audiences. Holding certifications including CISSP, CISM, PMP, CEH, Security+, and CCP (CMMC), William brings a rare combination of executive leadership, deep technical expertise, and engaging communication—making him a sought-after voice on cybersecurity strategy, compliance, and the evolving threat landscape.
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