@article {675, title = {Least Squares Disclosure Attacks: User Profiling for Mix-based Anonymous Communication Systems}, year = {2013}, month = {01/2013}, institution = {University of Vigo}, address = {Vigo}, issn = {UV/TSC/FPG/30052012}, author = {Fernando P{\'e}rez-Gonz{\'a}lez and Carmela Troncoso} }