security
Tokenization
Data Tokenization
Definition
Tokenization replaces sensitive data values (credit card numbers, SSNs) with non-sensitive placeholders called tokens that map back to the original values in a secure token vault. Unlike encryption, tokens have no mathematical relationship to the original value, so breaching a tokenized system yields no usable data without the vault.
PCI DSS scope can be dramatically reduced by tokenizing cardholder data.
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