Hld
System Design
Medium
Privacy-Preserving Global Ad Attribution
Design a system that attributes mobile app installs to specific ad clicks without using persistent hardware IDs (like IDFA). The system processes 1 billion clicks/day and 10 million installs/day. It must maintain user privacy through differential privacy or temporary hashing and provide reports to advertisers with a maximum delay of 4 hours.
Key concepts
data privacyid mappinghigh-volume joins
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