Privacy-Friendly Cohort Determination: Sealed, CSP-Independent In-Browser ML Inference of Professional Segments for Identity-Less Advertising

arXiv:2609.36153 · cs.CR, cs.LG · Submitted 2026-09-28 · Read on arXiv

cs.CR, cs.LG

Submitted: 2026-09-28

Updated: 2026-09-28

Code: https://github.com/patcg-individual-drafts/topics

Project page: https://mozilla.github.io/ppa-docs/floc_report

Terminology

• Fingerprinting — 6× in this paper · explained in 2 episodes
• Accuracy — 5× in this paper · explained in 1 episode
• Differential Privacy — 5× in this paper · explained in 4 episodes
• ACM Internet Measurement Conference — 3× in this paper
• AUC — 3× in this paper · explained in 2 episodes
• Sealed Inference Frame — 3× in this paper
• Anonymity Set — 2× in this paper · explained in 1 episode
• Calibration — 2× in this paper · explained in 7 episodes
• Differentially Private — 2× in this paper · explained in 3 episodes
• Seller Defined Audiences — 2× in this paper
• APEX — 1× in this paper · explained in 1 episode
• Admissibility — 1× in this paper · explained in 2 episodes
• Aggregation — 1× in this paper · explained in 1 episode
• Annual Network and Distributed System Security Symposium — 1× in this paper
• Benchmark — 1× in this paper · explained in 2 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Core — 1× in this paper · explained in 2 episodes
• Failure Modes — 1× in this paper · explained in 3 episodes
• Feature Engineering — 1× in this paper · explained in 3 episodes
• Personalization — 1× in this paper · explained in 2 episodes
• Provenance — 1× in this paper · explained in 4 episodes
• Robustness — 1× in this paper · explained in 5 episodes
• Self-consistency — 1× in this paper · explained in 2 episodes
• Verifiability — 1× in this paper · explained in 2 episodes
• Verification — 1× in this paper · explained in 2 episodes

Sources

• Evaluating Google's Protected Audience Protocol
• The Rise and Fall of Google's Privacy Sandbox
• Longitudinal Adoption and Deprecation of the Privacy Sandbox Web APIs
• Privacy in Targeted Advertising: A Survey
• Anatomizing Deep Learning Inference in Web Browsers

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