有人把自己 Mac 里的系统文件翻了一遍，发现苹果从 2022 年起就在后台悄悄给你和身边人建关系图，连谁是你亲戚都能推出来，数据还是明文的。他顺手写了个工具，谁都能在自己机器上看到这张图。
https://8rank.ai/game/apple-intelligence-personal-knowledge-graph
Anatomy of Apple's Personal Knowledge Graph — Eighth Rank
Every Mac since macOS 13 (2022) ships a pair of daemons whose only purpose in life is to build a graph about who you are, who you know, how those people are related to you and to each other, how you communicate with them, where you go, what you do and when. In this post, we look into how this system works and give you a tool to peek into your own graph.
8rank.ai