What are data anonymization and pseudonymization?

by | Feb 24, 2021 | CompTIA, Data Security, Exclusive Articles, Featured, Governance, Risk and Compliance, Privacy

Data Anonymization And Pseudonymization

What are data anonymization and pseudonymization?

Data anonymization and pseudonymization are done to protect the privacy of users. In the data anonymization process, personally identifiable information of users is removed or processed in such a way that users whose data are processed remain anonymous. In other words, it becomes infeasible to identify the users from anonymized data.

Pseudonymization is a process in which personally identifiable data fields are replaced with artificial identifiers or pseudonyms so that it is difficult to identify the individuals from the pseudonymized data without cross-referencing the data with other sources.

The process in which anonymized data are cross-referenced with other data to reidentify the individuals is called de-anonymization.

Data anonymization and pseudonymization are important to protect the privacy of users and to comply with certain regulatory compliances like the GDPR.


In this article, we would discuss:

  • What are data anonymization and pseudonymization?

  • What is Personally Identifiable Information (PII)?

  • What are the different data anonymization techniques?

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Amrita Mitra

Author

Ms. Amrita Mitra is an author, who has authored the books “Cryptography And Public Key Infrastructure“, “Web Application Vulnerabilities And Prevention“, “A Guide To Cyber Security” and “Phishing: Detection, Analysis And Prevention“. She is also the founder of Asigosec Technologies, the company that owns The Security Buddy.

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