Why Did Cambridge Analytica Fail?
Harvested 87 Million Friends of Friends
📜 What Happened
A cheerful personality quiz — 'thisisyourdigitallife' — was taken by 270,000 Facebook users. Through Facebook's friends-API, it quietly harvested data on up to 87 MILLION people, which Cambridge Analytica turned into psychographic voter-targeting products sold to political campaigns. When whistleblower Christopher Wylie went public in 2018, the blast radius was historic: CA shut down within months, Facebook took a $5B FTC fine and a permanent trust wound, and 'data privacy' went from nerd topic to dinner-table fear.
☠️ The Fatal Mistake
For platforms: building growth APIs with no imagination for abuse — the quiz was within the rules, because the rules were written by the growth team.
🧠 The Lesson (Free for You)
Any data you collect will eventually be used to the full limit of what's technically possible — by someone. Design systems for the worst plausible user, because they've already signed up.
📕 The Antidote Book
After power, seduction, and war, Greene turns to the operating system underneath them all: human nature itself — the wiring evolution installed that runs us beneath awareness. The 18 laws map the forces: irrationality…
📖 OPEN THE FULL INTERACTIVE BREAKDOWN →Searchable, filterable, free to read — they paid billions; your lesson is free.