Research on privacy of cryptocurrency users
Group of researchers from the Princeton University released the research on pseudo-anonymity of cryptocurrency users. Research shows how third-party web trackers can deanonymize users of cryptocurrencies. The research shows how anonymity of transaction in bitcoin system is not an obstacle for the law enforcement agencies (and any third party tracker) to locate Bitcoin, and other cryptocurrency users. You can find the research: ‘When the cookie meets the blockchain: Privacy risks of web payments via cryptocurrencies’ here