Everyone who accepts credit/debit card payments online needs to be familiar with and implement the Payment Card Industry Data Security Standard. This is easiest for merchants who don't directly handle any cardholder data. For example, if your store hands the shopping cart information over to a third-party provider like Paypal, and customers enter their payment information on that website before being redirected back to yours, you only need to ensure that the third-party provider you use is PCI DSS compliant. Visa has a registry of validated service providers on their website. Read More...