Advanced – Security Testing
Tokenization – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
The replacement of sensitive data with non-sensitive tokens that map back to the original value only via a secure vault.
In simple words
Swapping real sensitive values for meaningless tokens that map back only in a vault.
Exam tip
Tokenization is preferred over encryption for PCI scope reduction.
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