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Boosted by taral ("JP Sugarbroad"):
coral@code4lib.social ("Coral") wrote:
"We study 3 months of credit card records for 1.1 million people and show that four spatiotemporal points are enough to uniquely reidentify 90% of individuals. We show that knowing the price of a transaction increases the risk of reidentification by 22%, on average." https://www.science.org/doi/10.1126/science.1256297