Over 5,000 foreigners were tracked during visits to mainland China between 2017 to 2018, according to the latest data leak from a Chinese institution. Some individuals on the list say they were only in China for a day or were transiting through Shanghai. One cybersecurity expert says the latest data leak is unique in its increased sophistication, including the use of facial recognition and the collection of passport IDs. The information was compiled by the Shanghai Public Security Bureau, a local level branch of Beijing’s main surveillance body, the Ministry of Public Security. The data leak contains over 1.1 million surveillance records and includes information on 25,000 “persons of interest” in China, and 5,000 foreigners, including government officials and employees of Mitsubishi and U.S. manufacturing giant 3M. Hackers found the unprotected database, named “Uyghur Terrorist,” on an open-source platform and provided it to Australian security officials, media organisations, and Canberra-based …