Accuracy of linking attacks. (a) Accuracy of linking with genotype predictions where exact genotype-expression distributions are known (baseline attack). The absolute correlation threshold (x-axis) versus the fraction of vulnerable individuals (y-axis) is plotted. Red, green, and cyan plots show linking accuracy with gender, population, and gender and population as auxiliary information, respectively. (b) Linking accuracy with extremity based linking with all genotypes. (c) Linking accuracy with extremity-based linking with homozygous genotypes. (d) Sensitivity versus positive predictive value of linkings chosen with changing d1,2, threshold, for the eQTL selection where overall linking accuracy is 84%, in comparison to the random selections of linkings.