Cloud SOC · SOC Analyst

How do AWS CloudTrail, GuardDuty, and Security Hub work together?

CloudTrail — API call audit log (every action across AWS account, who/what/when/where). Free baseline + paid management/data event variants. GuardDuty — managed threat detection on CloudTrail + VPC Flow Logs + DNS logs. Outputs: alerts for known threat patterns (cryptomining, instance compromise, IAM credential abuse). Security Hub — central aggregation point for findings from GuardDuty, Macie, Inspector, third-party tools. Provides compliance scoring (CIS, NIST, PCI-DSS benchmarks). SOC analyst workflow: Security Hub → triage findings → drill into GuardDuty alert details → use CloudTrail for forensic timeline.

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