http://blog.whichssl.com/2013/02/secure-your-ecommerce-website-with-ssl-certificate/

With billions of users around the globe going online to buy their daily needs and a huge number of e-commerce websites catering to their needs, an intermediate solution to certify the authenticity and level of security ensured in the transaction becomes vital. You are responsible to assure your customers that it is completely safe. A reliable SSL certificate is the best way to go about it!