When using anonymization techniques to prevent unauthorized access to personal data, which of the following is the MOST important consideration to ensure the data is adequately protected?
A.
The key must be kept separate and distinct from the data it protects.
B.
The data must be protected by multi-factor authentication.
C.
The key must be a combination of alpha and numeric characters.
D.
The data must be stored in locations protected by data loss prevention (DLP) technology.
In anonymization (or encryption) techniques, maintaining the security of the data depends on keeping the key (or the method for re-identification) separate from the data it protects. If the key is compromised or accessible with the data, the anonymization or encryption can be reversed, exposing the personal data.
A. The key must be kept separate and distinct from the data it protects.
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