The Target Corp. breach exposed 40 million debit and credit cards and personal information about 70 million customers. The attack spurred congressional hearings and renewed debate about the need for EMV chip technology. The breach also proved how easy it is for hackers to tunnel from one part of a corporate network to another. Log monitoring needs to be coupled with additional analytics to be truly effective, experts say. In the wake of the Target breach, experts and industry groups said that in addition to EMV, merchants should implement tokenization and end-to-end encryption.”]
Source: https://www.bankinfosecurity.com/7-lessons-from-targets-breach-a-7658/op-1