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Facebook Political Ad Delivery Algorithms Inferred Users' Political Alignment, Inhibiting Political Campaigns' Reach

Occurred
Jul 10, 2019
Published
Dec 3, 2019
Source
AI Incident Database

Summary

Facebook's political ad delivery system reportedly differentiated the price of user reach based on their inferred political alignment, inhibiting political campaigns' ability to reach voters with diverse political views, which allegedly reinforces political polarization and creates informational filter bubbles.

Developers

  • Facebook

Deployers

  • Facebook

Harmed parties

  • political campaigns
  • Facebook users

Classification

Category confidence: 85%
Severity confidence: 80%

Rationale: Algorithmic discrimination based on political alignment creates disparate impact on campaign reach and reinforces polarization.

Classifier: Qwen/Qwen3.5-35B-A3B-FP8

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