Which of the following privacy-enhancing technologies (PETs) is MOST effective for ensuring individual data records cannot be linked back to specific individuals in a dataset?

The correct answer is A. Differential privacy. Differential privacy provides mathematically provable protection against re-identification and linkage, adding calibrated noise to outputs so individuals cannot be singled out or linked. Pseudonymization (C) and masking (D) reduce direct identifiers but remain vulnerable to linka

Privacy Architecture

Question

Options

ADifferential privacy
BSecure multiparty computation
CPseudonymization
DMasking of personal data

How the community answered

(27 responses)

A
96% (26)
C
4% (1)

Explanation

Differential privacy provides mathematically provable protection against re-identification and linkage, adding calibrated noise to outputs so individuals cannot be singled out or linked. Pseudonymization (C) and masking (D) reduce direct identifiers but remain vulnerable to linkage attacks. Secure multiparty computation (B) protects computation among parties, not release-time "Differential privacy limits what can be learned about any individual from query results, resisting re-identification/linkage."

Topics

#Privacy-enhancing technologies (PETs)#Differential privacy#Re-identification prevention#Data de-identification

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