This is likely the paper you are referring to: https://www.nature.com/articles/srep01376 https://www.nature.com/articles/srep01376 It states that 95% of peopl

This is likely the paper you are referring to: https://www.nature.com/articles/srep01376 https://www.nature.com/articles/srep01376 It states that 95% of people can be identified from just 4 location samples.