Masking protects data in use
Tokenization typically use to protect data at rest
Obfuscation scrambles sensitive data
Anonymization permanently replaces sensitive data with a substitute value
C is correct - Tokenization, when applied to data security, is the process of substituting a sensitive data element with a non-sensitive equivalent, referred to as a token, that has no intrinsic or exploitable meaning or value. The token is a reference (i.e. identifier) that maps back to the sensitive data through a tokenization system.
Tokenization, when applied to data security, is the process of substituting a sensitive data element with a non-sensitive equivalent, referred to as a token, that has no intrinsic or exploitable meaning or value. The token is a reference that maps back to the sensitive data through a tokenization system.
Data masking not always is looking for back regeneration, only in few cases (as algorithmic substitution).
In contrast, tokenization is intended always for mapping back. Here the key word is: mapping.
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