Along with the ability to accept credit card transactions, our Authorize.net and Stripe integrations also allow for cards to be saved on file. Authorize.net uses their CIM solution, while Stripe leverages their own offering.
By allowing buyers to save cards on file, you can reduce the checkout steps required, while leveraging technology that does not require you as a merchant to save that information, avoiding PCI compliance issues. Instead Stripe and Authorize.net handle that information securely on your behalf, using a tokenization process to create a link between the buyer on your store and the card on file.