CyberSource is an E-commerce credit card payment system management company. Customers process online payments, streamline online fraud management, and simplify payment security. Founded in 1994, CyberSource provides online payment and fraud management services for medium and large-sized merchants. CyberSource acquired the U.S. small business payment services provider, Authorize.Net, in November 2007 for $565 million. On April 22, 2010 Visa Inc agreed to acquire Cybersource for about $2 billion.