June 20, 2005

Breach of Credit Card Companies' Security Affects 40 Million Accounts

MasterCard International reported Friday that more than 40 million credit card accounts of all brands, including 13.9 million MasterCards, may have been exposed to fraud through a security breach at a third-party payment processing company. MasterCard said a security hole had been identified at CardSystems Solutions, which processes more than $15 billion in Visa, MasterCard, American Express, Discover, online debit and electronic transfer transactions a year for small to midsize merchants and financial institutions.

MasterCard Says Security Breach Affects 40 Million CardsNew York Times, June 17, 2005.