Displaying posts tagged with


Data anonymization is hard – this time shown with NYC taxi data

One often hears that some massive collection of data will not have privacy implications because it has been “anonymized”. Any time you hear that, treat the statement with great skepticism. It turns out that effectively anonymizing data, making it impossible to identify the individuals in the data set, is much harder than you might think. [...]

Article 29 Working Party Issues Opinion on Anonymization Techniques

The EU’s Article 29 Working Party on the Protection of Individuals with regard to the Processing of Personal Data has released “Opinion 05/2014 on Anonymisation Techniques” (Working Party pdf; archive pdf). We’ve discussed the pitfalls of various anonymization or “de-identification” techniques and how the information can be “deanonymized” or re-identified, leading to privacy problems for individuals. Here’s an [...]