Ex-Cambridge Analytica employee tells UK Parliament that Kogan/GSR's Facebook datasets/questionnaires were not the only ones CA used, cites two other FB quizzes
Context & Ripple Effects
The testimony lands mid-inquiry: Parliament already had a paper trail showing Facebook was warned in 2014 that Kogan's survey app could sell user data, and days earlier confirmed some users' private messages were scraped by a quiz app tied to Cambridge Analytica. What the ex-employee adds is scope — Kogan/GSR was one supplier among at least three, with two further Facebook quizzes named.
That reframes the scandal from a single bad actor to a supply chain: if multiple quiz developers fed the same political-data operation, Facebook's audit surface and Parliament's questions both widen well past Aleksandr Kogan.
First-order effects
- Facebook's remediation can no longer stop at banning GSR — every quiz app the witness names becomes a separate audit target, and each new dataset identified extends the company's disclosure obligations to affected users.
- UK Parliament's inquiry gains named leads beyond Kogan/GSR, shifting hearings from 'what did one academic do' to 'which developers supplied Cambridge Analytica'.
Second-order effects
- Other quiz-app developers face pressure to prove their own data handling, since the testimony implies CA's sourcing was routine rather than exceptional — expect rivals' apps pulled into Facebook's review net.
- Cambridge Analytica's legal exposure compounds: the wiped-data claim already strained credibility once models survived past the deletion date, and a wider set of sources makes any single-source defense untenable.
Third-order effects
- If the multi-supplier pattern holds, the eventual settlement is platform-level data-access governance rather than per-developer punishment — the later leaked internal documents showing operations across dozens of countries point the same direction.
- Third-party data brokers built on social-graph harvesting become structurally unviable as platforms are forced to treat app-level data sales as a systemic control failure, not isolated policy breaches.
The trend: Social-platform data scandals are moving from single-app violations toward systemic third-party harvesting, with parliamentary and regulatory scrutiny following the supply chain rather than the individual developer.