!!! Overview
[{$pagename}] ([CDE] and also worded "Card Data Environment') [Payment Card Industry Data Security Standard] ([PCI DSS]) defines as a computer system or networked group of IT systems that processes, stores and/or transmits [Cardholder Data] or sensitive payment [authentication] data. 

[{$pagename}] also includes any component that directly connects to or supports this network and includes specific requirements for securing electronic payment and [authentication] data residing on all physical and virtual components in the including:
* Network components such as firewalls, switches, routers, access points, network appliances, security appliances.
* [Point of Sale] (POS) systems, such as payment terminals, cash registers, card readers and other systems that intake payment card data from a customer at the time of a payment transaction.
* Servers including Web servers, application servers, database servers, authentication servers, mail servers, proxy servers, network time protocol servers and domain name servers.
* All applications, both internal and external.
* Any virtual component, including virtual machines, virtual switches, virtual routers, virtual appliances, virtual applications, virtual desktops and hypervisors.
* Third-party IT systems.


!! More Information
There might be more information for this subject on one of the following:
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