Vice President, Global Head of Security Policy 


Brett DeWitt leads global public policy strategies that advance Mastercard's leadership on cybersecurity and other emerging security technologies. In this position, Brett represents Mastercard across key international trade associations and public‑private partnerships, serving as Co‑Chair of the International Chamber of Commerce (ICC) Cyber Working Group and Board Member of the Alliance for Critical Infrastructure (ACI). Brett spent over a decade in the U.S. House of Representatives, where he helped lead the passage of legislation establishing the Cybersecurity and Infrastructure Security Agency (CISA).