the Eighth Rank

The Eighth Rank is an open, independent security research movement. We exist to reduce the harm new technology can do to people, playing moves the book hasn’t got yet. No flags, no VCs, no stakeholders, no profit. Just the game, ahead of theory.

Borderless, independent, frontier AI-security research

Research

Games

Every game counts. Some games are played by the book. Others write it.

  1. OpeningApple Intelligence / Personal Knowledge Graph

    Anatomy of Apple's Personal Knowledge Graph

    Every Mac since macOS 13 ships a pair of daemons whose only purpose in life is to build a graph about who you are, whom 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.
  2. OpeningApple Intelligence / Personal Knowledge Graph

    Part of Anatomy of Apple's Personal Knowledge Graph

    Weaponizing Personalization: From Knowledge Graph to Extortion

    What happens when the personal knowledge graph ends up in the wrong hands. A breach hands you records; this store hands you conclusions (who your family are, whom you are closest to, with a confidence beside each). How can it be weaponized, and what's the blast radius? Here is a worst-case thought experiment.
All games

Games are published when they end