Consumer brain wave headsets threaten privacy
Summary
The piece analyzes Apple’s Personal Knowledge Graph on macOS, detailing how two on-device daemons build a large, cross-referenced graph from Contacts, Calendar, Photos, Messages, and more. It highlights how the graph is stored, what it infers about people and relationships, and the potential privacy risks if that data is exposed or misused, including weaponization scenarios and the existence of a local dashboard (iKnow) to read the graph. The analysis emphasizes the gaps in documentation and control for users, and calls out the dual use of embedded ML models in shaping relationship inferences.