Está interessante este artigo.
A few weeks ago, a security researcher published a list of over 6,000 compromised e-commerce stores. Each store had been hacked and infected with credit card swiper malware. It’s no surprise that criminals target e-commerce retailers, but it is disheartening that so many online stores were compromised for so many months and the retailers had no clue.
Many security problems are caused by technological issues, and as an industry we have to get better at building secure systems, but the most important factors are psychological and educational. I’ve met any number of retailers who take the line that criminals couldn’t possibly be interested in their store.
Many e-commerce merchants focus their efforts on maximizing revenue and conversion rate optimization, paying scant regard to security until disaster strikes. That’s understandable, but crossing your fingers and hoping for the best isn’t a viable security strategy. E-commerce merchants must be proactive in protecting their stores and their users’ data. There really is no excuse for leaving a JavaScript credit card swiper on an e-commerce store for several months.
http://www.thewhir.com/blog/how-can-web-hosting-companies-help-e-commerce-retailers-stay-secure