We take the security of all of your privacy very seriously, and your credit card information is no different. We strictly use Stripe as our payment provider, which means that we are PCI compliant and use the most up-to-date techniques for safely and securely storing your payment information.
In fact, using Stripe's cutting edge techniques actually prevents our site from ever knowing your full credit card number, therefore we never store that information on our site. If you want to know the finder details on how this is possible, read How we charge your card without ever knowing your card number.
Your credit card information is securely submitted to Stripe, and we store a secure token that allows a subscription to automatically charge your card at the billing cycle you signed up for.
If you want to read more about the lengths that Stripe takes to ensure credit card security, you can do so here.