The Difficulty of Graph Anonymisation - KDnuggets

This article is written in response to the recent TraceTogether privacy saga. For the non-Singaporeans out there, TraceTogether is Singapore's contact tracing initiative in response to the COVID-19 pandemic in Singapore. The objective of the program was to quickly identify people who might be in close contact with anyone who has tested positive for the virus. It comprises of an app or physical token which uses Bluetooth signals to store proximity records. As at the end December 2020, 70% of Singapore residents were supposedly on the programme.