A payment gateway is defined as a technology used by merchants to accept debit or credit card purchases from the customers. These payment gateway also accepts direct payments processing for the e-businesses, online retailers, bricks or traditional brick and mortar retail stores. In other words, the payment gateway providers works as the middleman between your customer and the merchant, ensuring a secure transaction. As the middleman the payment gateway providers manages the customer’s sensitive card details ensuring that the information is passed securely between the acquirer and the merchant.