As Chief Security Officer, Marnie Wilking oversees cyber security, physical security, traveler safety, and fraud prevention across the Booking.com global travel platform. With over 20 years of experience in financial services, retail, and healthcare, Marnie brings a deep understanding of risk management, scalability, and trust in digital ecosystems. Prior to Booking.com, she held CISO roles in both retail and healthcare sectors, building expertise in crisis management, threat intelligence, and security operations at scale.