This brief describes tokenization as a method of format-preserving data protection for PII, PHI, and payment data. It outlines reversible (cryptographic and non-cryptographic) and irreversible techniques, with examples including Format-Preserving Encryption (FPE), Secure Stateless Tokenization (SST), and Format-Preserving Hashing (FPH). Diagrams and examples on page 3 illustrate how tokens retain the structure of original data while preventing exposure. OpenText Voltage solutions eliminate reliance on vaults, improve scalability, and ensure data remains protected at field level—reducing compliance risk, simplifying analytics, and supporting PCI, GDPR, and privacy mandates.

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