Anonymization is the process of removing from data sets. Response:

Access refers to the ability to view or manipulate data, not information removed during anonymization.

Cryptographic keys are used for data encryption, not the type of information removed in the anonymization process.

Numeric values often remain in anonymized datasets, provided they do not directly identify an individual.

Anonymization is the technique of transforming or removing personally identifiable information (PII) from data so that the data subject cannot be identified, thus preserving privacy while allowing data use.