JoAnn Stonier
JoAnn Stonier

JoAnn Stonier


JoAnn C. Stonier is the global privacy & data protection officer for MasterCard Worldwide. She is responsible for worldwide privacy compliance for the enterprise, which includes identifying, evaluating and managing risks associated with privacy and information management on a global basis. Ms. Stonier and her team of global professionals help business colleagues understand the risks and relevant legal requirements with utilizing personal information in the development of products and services.

Before joining MasterCard in 2008, Ms. Stonier was the chief privacy officer for American Express Company. She also held various roles of increasing responsibility at American Express, including chief operating officer, American Express Tax & Business Services; vice president, Acquisition Integration; vice president & assistant to the Chairman; director & assistant to the General Counsel; and senior manager, Financial Reengineering. Prior to this, Ms. Stonier worked at Waldenbooks, Inc., PepsiCo and started her career as an auditor for PriceWaterhouse Coopers.

In addition to her work at MasterCard, Ms. Stonier is an adjunct professor at two local colleges, St. Francis College in Brooklyn where she teaches accounting and auditing at the undergraduate level; and Pratt Institute where she teaches business strategy as part of the Design Management Masters program.

Ms. Stonier received her Juris Doctor from St. John’s University in Queens, and her Bachelor’s of Science from St. Francis College. She holds memberships in the Bar of the State of New York and the Bar of the State of New Jersey. Ms. Stonier has been recognized as an expert in the field of financial privacy and has spoken at industry events, including International Association of Privacy Professionals (IAPP) Annual Meeting; PLI’s Annual Institute on Privacy and Data Security Law; the Center on Law & Information Policy and Dow Jones Global Compliance Symposium.