Deborah Wheeler
Troy Mattern
TOP 100 LEADERS
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Deborah Wheeler
Title: Chief Information Security Officer Company: Delta Air Lines Industry: Travel & Tourism
At Delta Air Lines, CISO Deborah fortifies its vast aviation infrastructure and preserves customer trust. Her previous roles at financial-sector companies like Freddie Mac, Ally Financial and Fifth Third Bank heavily inform her expertise. She now leads global cyber resilience strategies, ensuring robust data protection and supply chain security across critical airline operations.
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Troy Mattern
Title: Chief Information Security Officer Company: StoneX Group Industry: Financial Services
At StoneX Group, CISO Troy directs enterprise defence strategy across global financial markets. Following high-level security leadership roles at Motorola Solutions and Zurich Insurance, he transforms complex operational risks into missioncritical architecture, safeguarding sensitive trading platforms and building community-driven security initiatives.
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