About me
Rosalia Hajek is a senior executive in information technology who is currently serving as Chief Information Security Officer (CISO) for Topgolf Callaway (TC) Brands. She has provided cybersecurity to various public and private Fortune 500 companies across the North America, Europe, Middle East, and Asia-Pacific regions. She reduced cyber risk postures by $127 million across complex global business environments and the deal cycle of various Mergers, Acquisitions, and Divestitures.
Before joining TC Brands, Rosalia was the Global Business Information Security Office (BISO) for MGM RI, where she led a team of Business Information Security Officers tasked with implementing security solutions tailored to business-specific needs and driving the adoption of cybersecurity measures globally. Due to her partnership with the CISO, her organization significantly increased its cybersecurity maturity, with a 35% improvement achieved in 2022. Rosalia also spent nearly a decade at Kaiser Permanente, the country's largest not-for-profit health plan and an integrated healthcare system that serves 305k employees, 12.7 million members nationwide, and generates $112.7B in revenue. She partnered with the CISO to strengthen Technology Risk capabilities as the National Leader for the pioneering Privacy and Security Program.
