Cyber TOP100 LEADERS H2 2026 | Page 43

Hazel Diez Castaño

45

TOP

Hazel Diez Castaño

Title: Global Chief Information Security Officer Company: Santander Industry: Financial Services
100 LEADERS
With 20 years of experience in the information security field, Hazel has a senior profile with a multidisciplinary background. Having developed her career between Deloitte as a Senior Consultant and at Aviva as Head of Security Consultancy( architecture and design), Hazel has had the opportunity to hold different roles within the 1st, 2nd and 3rd lines of defence. She currently works as Santander’ s Global CISO. She has previously served as the Dufry Group’ s Global CISO. cybermagazine. com 43