Experts disagree on whether third-party vendor breach could have paved the way to Target’s malware attack against Target. Analyst: “If the [Target] cardholder data environment wasn’t sufficiently segmented from the contractor environment, the criminals could have found their way over to the POS systems just by getting into the contractor account” Target’s point-of-sale malware attack exposed some 40 million credit and debit cards and personally identifiable information about 70 million consumers. Target says it’s still investigating the cause of its breach and has no comments about the state of its PCI compliance.”]
Source: https://www.govinfosecurity.com/disagreement-on-target-breach-cause-a-6491