Global Big Data Conference

"Legal confidentiality is a shield for citizens." These are the words of Shami Chakrabarti, the one-time director of the UK-based human rights group Liberty, who was speaking in 2018. Well, it seems that this shield has just been broken, because researchers at the University of Zurich in Switzerland have published a study in which they were able to identify the participants in confidential legal cases, even though such participants had been anonymized. By harnessing these technologies in tandem, the study's authors could mine over 120,000 public legal records and then use an algorithm to identify connections between them. Described as "linkage," this process enabled the researchers to identify anonymous parties mentioned in public records of Swiss Supreme Court decisions, simply by linking anonymous records to those where various pieces of information was given.