The pages where credit card numbers are collected are encrypted and hosted on an SSL server (Secure Socket Layer). You will see a lock symbol at the bottom of your browser. Note that ClubRunner does not store any credit card information on our servers, this page sends the information to the processing gateway in real time using https calls, and we only keep track of whether the payment went through successfully, and the accompanying confirmation number. We have also gone to great lengths to partner only with processing companies that are industry leaders and can be entrusted with this important task so you can rest assured that you are on an enterprise standard platform.