Personally Identifiable Information (PII) are the unique pieces of information that make up your identity and distinguish you from others. Cybercriminals typically go after these because they sell for a nice profit on underground forums and markets.

The PII that one can gather from public records such as a telephone directory are classified as “nonsensitive.” In contrast, PII that includes bank account and credit card numbers, medical records, passport details, and social security numbers are considered “sensitive” and so need to be protected.

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