Explain pci compliance to the database administrator at a large

In 500 words or more, explain PCI compliance to the database administrator at a large retailer. Consider the consequences for non-compliance. 

Cite your sources. Do not copy. Write in essay format not in bulleted, numbered or other list format. 

Reply to two classmates’ posting in a paragraph of at least five sentences by asking questions, reflecting on your own experience, challenging assumptions, pointing out something new you learned, offering suggestions.