Frequently Asked Question
Can the full credit card number be displayed within a browser window?
Wherever PAN is accessed or displayed, other controls such as Time To Live (TTL) or webpage "timeouts" should be deployed in accordance with PCI DSS Requirement 8.1.8, so that the screen does not display the card numbers indefinitely. Additionally, as with all systems that transmit cardholder data over a public network, the website which displays the PAN should have strong encryption enabled to ensure the data is secured as it is entered and validated.
(Note: PCI DSS Requirement numbers refer to PCI DSS version 3)