Security Audit and Monitoring System Design

Problem Overview

Design a security audit and monitoring system that records sensitive operations across services and performs anomaly detection. The system must address: (1) audit log collection — how logs are captured at the source without disrupting the main business path; (2) storage — durable, scalable storage for high-volume log data; (3)…

• 4 candidate-reported follow-ups — the exact probes interviewers asked, with the trigger for each
• The rest of the problem statement — full requirements, constraints, and edge cases
• Approach and trade-offs — what passing candidates did, and the mistakes that sink people