Virtual roundtable: Navigating cyber risk without a full-time CISO |

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Experienced CISOs, CTOs, and CIOs bring real-world experience

Our mission

Our mission is to empower mid-sized businesses to operate securely with world-class cybersecurity expertise by providing flexible, fractional CISO leadership. We deliver strategic guidance, operational excellence, and trusted partnerships to protect what matters most, enabling our clients to thrive securely in an ever-evolving digital world.

Seasoned practitioners

Our team is led by Sean D. Mack, Managing Director, a seasoned CISO and CIO with deep experience leading security and technology transformation in both enterprise and high-growth environments.

Sean’s leadership brings a balance of strategic vision, hands-on technical expertise, and the ability to translate cyber risk into meaningful business impact.

Connect with Sean on LinkedIn

Sean D. Mack

CXO Advisor: Backed by ISMG’s global cybersecurity network

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