You may notice this site is only accessed via SSL. There are many breeds of SSL you can use, including EV (Extended Validation) that basically carry a level of insurance against fraud if someone were to actually crack SSL. Most levels of SSL are secure enough for the average site, and the Everyday Security level of SSL we recommend for most applications is highly secure.
On this site we use Stripe for Web commerce, which is fully secure as you are entering your credit card details effectively on their site and we never record those details. We just receive payment without any exposure of your financial details “in the open” on the web. We also add SSL to our entire site as that makes it hard for hackers and trackers to see anything of what you are doing as all pages are encrypted.