PCI Compliance is noted as Payment Card Industry compliance which is applied in various companies of various size which accepts credit cards for the purpose of payment. If all of these companies accept the mode of card payment they will also store the process of the payment and the transmit of the data of the cardholder, it is essential for the company to keep the security of the data. In this case the companies uses the best practice for the safety of data. Audit is one of a type of examination which is independent from any type of books, records or any kind of document. This is done to know the financial status of the organisation. In an audit it is examined the way an organisation have invested all their capitals. Legal action is considered as the process in which the law of the nation take legal actions on any organisation to on anyone due to some unlawful activity. Revenue loss are considered as the loss which can also be released by keeping on going of the business activities for a particular company. This is the thing which occurs due to sale in case of trade.