If your customers will submit their credit card information online then they will want to be sure that the transaction is secure. If they are not satisfied with
the level of security probably they will not buy products from you.

The best way to assure your customers about safety is to secure your web site by using a SSL certificate. When a site is secured with a SSL certificate, all
the transactions will be encrypted and the visitors will see a special lock sign in their browser indicating that the site is secure. Visitors can tell if a
page is secured only by looking at the URL too. A regular page URL starts with "http" while a secured page URL starts with "https".