Linkage Attack

Linkage Attack:


A linkage attack is an attempt to re-identify individuals in an anonymized dataset by combining that data with background information. The linking may use quasi-identifiers, such as zip or postcode, gender, salary, and so on that are present in both sets to establish identifying connections.

Many organizations aren’t aware of the linkage risk involving quasi identifiers, and while they may de-identify direct identifiers in a dataset, they often don’t think of de-identifying the quasi-identifiers in the dataset.


Return to glossary

Share this post

Previous post


Next post

Location Data

Ready to learn more about Privitar?

Our team of data privacy experts is here to answer your questions and discuss how data privacy can fuel your business.