Visa and Mastercard have been fighting fraudulent merchants for decades. However, the problem has changed and worsened in recent years. Card transactions tied to ethically dubious sales tactics — purchases of goods and services cardholders ultimately say they never agreed to — have been the industry’s main fraudulent merchant problem. Often those businesses worked with small processors that tolerated higher than average chargeback rates in return for receiving significantly higher fees. Ethically dubious businesses create very minor reputational damage to the Visa and Mastercard payment ...