On August 7, the PCI Security Standards Council (PCI SSC), the open global forum responsible for setting payment security standards, published an information supplement titled “Third-Party Security Assurance Guidance,” which is designed to help organizations and their business partners reduce payment data risk from third-party operations. In November 2013, the PCI SSC updated two data security standards. The first, PCI DSS, applies to entities involved in payment card processing—merchants, processors, acquirers, issuers, and service providers, as well as all other entities that store, process or transmit cardholder data, and the second, PA DSS, applies to software vendors and others who develop payment applications that store, process, or transmit cardholder data as part of authorization or settlement, where these payment applications are sold, distributed, or licensed to third parties. The new guidance supplements certain PCI DSS requirements related to when a merchant or entity shares cardholder data with a third-party service provider. Specifically, the supplemental guidance provides “practical recommendations” on how to: (i) conduct due diligence and risk assessment when engaging third-party service providers; (ii) implement a consistent process for engaging third-parties; (iii) develop appropriate agreements, policies, and procedures with third-party service providers; and (iv) implement a process for maintaining and managing third-party relationships through the lifetime of the engagement.