Pseudonymization
A data privacy protection technique that reduces the risk of data exposure by replacing direct identifiers—such as names and email addresses—with reversible pseudonyms. It is explicitly defined in Article 4 of the GDPR. Its key distinction from anonymization is that original data can be restored using a mapping table.
Timeline (last 90 days)
脱敏（Redaction）与假名化（Pseudonymization）是两种不同策略：前者用占位符替换敏感片段（如`[EMAIL_REDACTED]`），信息不可逆；后者用hash或随机ID替换，保留可关联性以便调试。
Pseudonymization is a data-processing technique explicitly defined in Article 4 of the GDPR, which replaces direct identifiers with reversible identifiers.
The key difference between pseudonymization and anonymization lies in reversibility: pseudonymization maintains a locally stored mapping table of tokens to real names, and if that table is leaked, the protection fails.
All Facts (3)
脱敏（Redaction）与假名化（Pseudonymization）是两种不同策略：前者用占位符替换敏感片段（如`[EMAIL_REDACTED]`），信息不可逆；后者用hash或随机ID替换，保留可关联性以便调试。
50%UnverifiedPseudonymization is a data-processing technique explicitly defined in Article 4 of the GDPR, which replaces direct identifiers with reversible identifiers.
50%UnverifiedThe key difference between pseudonymization and anonymization lies in reversibility: pseudonymization maintains a locally stored mapping table of tokens to real names, and if that table is leaked, the protection fails.
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