While we do collect your credit card information at payment processing time, we do not store the information anywhere on our servers. Instead, the information is passed along to Authorize.Net. Authorize.Net processes all payments and subscriptions on our behalf. For the user, this simply means that as long as Authorize.Net tells us that your payments are current, we continue to keep your account active. If you need to change your credit card information (or upgrade your account) the same process is followed and again the credit card information is passed to Authorize.Net. Also, notice that all information is SSL encrypted during transmission to protect it further.