Mastercard Statement

April 28, 2023 | HONG KONG

On the evening of 27 April, 2023, Mastercard was made aware of an incident impacting a limited number of Hong Kong cardholders who may have seen duplicate transactions posted to their account. Our investigation confirms this was caused by a set of transactions being submitted twice for processing. It is not related to any fraudulent activity. We are currently assisting the respective acquiring and issuing banks in reversing all duplicate transactions as an immediate priority.

Media Contacts

Karen Lo

Karen.Lo@mastercard.com

Media Contacts

Helen Feng

Helen.Feng@mastercard.com

About Mastercard (NYSE:MA) www.mastercard.com

Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments and businesses realize their greatest potential. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.

About Mastercard

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re building a resilient economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.

www.mastercard.com