Imprint
A physical impression of a customer's card which proves that the card was present when the sale was made. Imprints may be created electronically using a magnetic-stripe-reading terminal including a correct point-of-sale (POS) entry code.

Incubators
Organizations offering a variety of resources, including mentoring, financing advice, technological training, business space, and research facilities to entrepreneurs that otherwise lack these resources.

Independent Sales Organization (ISO)
An organization that processes merchants' online credit card transactions in exchange for a percentage of the sales or for transaction fees.

Internet commerce
Any commercial transaction performed via the Internet.

Issuing Bank
A bank that issues credit cards to customers. The issuing bank funds the merchant’s account when a charge is made to one of their customer’s cards, and later bills the customer for that charge.