From the FAQ: > Q: How do you guarantee that my credit card number is safe and secure? > We will send you a 128-bit encrypted HTTPS link via SMS that you can

From the FAQ: > Q: How do you guarantee that my credit card number is safe and secure? > We will send you a 128-bit encrypted HTTPS link via SMS that you can click to enter your credit card number. We do not store your credit card number. All payment processing is handled by Stripe. EDIT: I guess this seems redundant now, others have posted the same thing in the time it took me to respond, hah.