In data privacy, anonymization is the process of removing identifying information to prevent re-identification. Which choice best describes this concept?

• A. The process of removing identifying information to prevent re-identification.
• B. Encrypting data to hide content.
• C. Storing data in a secure location.
• D. Replacing data with synthetic values.

Answer: (A)

Anonymization means irreversibly removing or transforming personal identifiers so the data cannot be linked back to an individual, reducing the chance of re-identification even if the data is exposed. This often involves stripping direct identifiers (like names, IDs, contact details) and generalizing or removing quasi-identifiers that could still reveal someone when combined with other data. The described concept fits this goal exactly: stripping identifying information to prevent re-identification.

Encrypting data hides its content but doesn’t remove the potential link to a person in the dataset once decrypted; storing data securely protects access rather than the identifiers themselves; replacing data with synthetic values is a masking or synthetic-data approach that may serve privacy goals but isn’t the standard definition of anonymization.