Hands On System Design - Distributed Systems Implementation

Hands On System Design - Distributed Systems Implementation

Day 158: User Behavior Analytics - Catching the Insider Threat

Apr 20, 2026
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What You’re Building Today

Today you’re implementing a User Behavior Analytics (UBA) system that learns normal user patterns and flags anomalies in real-time. Think of it as your system’s behavioral psychologist—it knows when Bob from accounting suddenly starts accessing database servers at 3 AM or when Alice downloads 100x more data than usual.

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