More than a third of all Germans own a credit card, which is especially the most important payment method for online shopping. In Germany, there are now over a thousand different credit cards on the market. Visa is the number one worldwide, followed by MasterCard in second place. Unlike American Express, Diners Club, and Barclaycard, both companies do not lend money themselves but only handle the payment processing for the banks that issue the cards and also determine their fees and services. Additionally, new security measures such as SecureCode and financing options like revolving credit are continuously being offered. This book provides an overview of credit cards, the most important brands, the latest developments, and credit card fraud.