Discover Card is a credit card brand that offers various financial products, including cash back rewards, travel benefits, and no annual fees. It is known for its user-friendly online banking platform and customer service, making it a popular choice among consumers. Founded in 1985, Discover Card was one of the first credit cards to offer cash back on purchases. It operates on the Discover Network, which allows cardholders to use their cards at millions of locations worldwide. The card also provides features like fraud protection and credit score monitoring.