The Target Corp. breach exposed 40 million debit and credit cards and personal information about an additional 70 million customers. Other major payments breaches at retailers since Target have included Sally Beauty, Michaels, Home Depot, Kmart and Staples. EMV chip technology was a catalyst for a presidential order to push adoption of EMV technology among U.S. retailers and banks. The breach also proved how easy it is for hackers to tunnel from one part of a corporate network to another, which is why merchants have to segment their networks.”]
Source: https://www.inforisktoday.com/7-lessons-from-targets-breach-a-7658