Customer shall use the Services, the Equipment (as such term is defined in Paragraph 5(f)) and the Licensed Material (as such term is defined in Paragraph 6(a)) only for lawful purposes. To the extent deemed necessary by Customer, Customer shall implement security procedures necessary to limit access to the Services to Customer’s authorised users and shall maintain a procedure external to the Services for reconstruction of lost or altered files, data or programs, and Customer acknowledges its responsibility for securing cardholder data possessed by Customer.