Ivan Shefrin is a CISO who leads Managed Security Services for Comcast Business, including Email Security, Endpoint Detection (EDR), Attack Surface Management (ASM), Exposure & Vulnerability Management, Distributed Denial of Service (DDoS) Mitigation, Network Detection & Response (NDR), Penetration Testing and Managed Detection and Response (MDR).

He has over 25 years of experience designing and implementing enterprise security programs that mitigate risk, ensure compliance, and protect data. Throughout his career, Ivan has excelled in leading complex, large-scale security initiatives within Fortune 500 companies, academic institutions, and high-growth organizations, consistently delivering measurable improvements in cybersecurity resilience and business alignment.