AWS Security Hub

A unified cloud security operations platform that aggregates, correlates, and prioritizes findings from across your AWS environment. Recently restructured: the original Security Hub (compliance/posture checks) is now called Security Hub CSPM, and a new, enhanced Security Hub sits on top of it as the unified correlation layer — this rebrand is the single freshest, most-tested nuance in this whole service.

Detective — aggregation/correlation Governance — compliance standards Compliance — CIS/PCI/NIST/FSBP
2025-06-17
Enhanced Security Hub GA
30 days
Free trial
1 year
Trends dashboard historical window
OCSF
New supported finding format

How Security Hub Actually Works — The Two-Layer Model

Layer 1: Security Hub CSPM (the original service, renamed)
Layer 2: The new, enhanced Security Hub (GA June 17, 2025)
⚠️ The Recurring Exam Theme

Security Hub questions increasingly test one thing above all else: can you distinguish Security Hub CSPM (configuration/compliance checks against standards) from the new unified Security Hub (cross-service correlation producing exposure findings and attack-path visibility). Older exam material and many third-party resources still use "Security Hub" to mean only the CSPM layer — be ready for both framings.

Exam Domain Mapping

DomainWhere Security Hub Shows Up
Threat Detection & Incident ResponseExposure findings, attack-path correlation, EventBridge custom actions for response
Security Logging & MonitoringThe centerpiece — ASFF/OCSF aggregation, Trends dashboard, multi-account/multi-region aggregation
Management & Security GovernanceCompliance standards (CIS/PCI/NIST/FSBP), Security Coverage widget, Organizations integration
Infrastructure SecurityCSPM configuration checks underlying many findings

Decision Tree — Mental Model

Threat

Findings scattered across GuardDuty, Inspector, Macie, and configuration checks, with no way to see which combinations represent real, prioritized risk; lack of a documented compliance posture against CIS/PCI/NIST

Security Goal

Single pane of glass for findings; automatic compliance scoring; correlated, prioritized exposure visibility instead of isolated alerts

AWS Service

AWS Security Hub

Security Hub CSPM (compliance checks) Enhanced Security Hub (correlation layer) Exposure findings Trends/Summary dashboard
Implementation

Enable via Organizations delegated administrator. Designate an aggregation region for cross-region visibility. Enable relevant compliance standards per regulatory need.

Monitoring

Use exposure findings and the Trends/Security Coverage dashboard to prioritize, rather than raw finding counts.

Remediation

EventBridge custom actions → Lambda/Step Functions, or the dedicated Automated Response and Remediation solution, for high-priority exposure/CSPM findings.

Final Summary

Must Memorize
  • Security Hub CSPM = compliance/config checks (the original service, renamed)
  • Enhanced Security Hub = correlation layer producing exposure findings
  • Exposure findings correlate GuardDuty + Inspector + Macie + CSPM signals on a shared resource
  • A resource can be primary in at most ONE exposure finding
  • ASFF (legacy) and OCSF (new) are both supported finding formats
Must Understand
  • Why correlation (exposure findings) beats raw finding-count triage
  • The aggregation-region concept for cross-region/cross-account visibility
  • The distinction triangle: Security Hub (aggregate/correlate) vs Detective (deep investigate) vs Config (raw per-resource compliance)
Can De-prioritize
  • Exact dollar pricing per check evaluated
  • Full list of every CIS/PCI/NIST control
  • Console UI navigation specifics

Exam appearance probability: HIGH

Security Hub CSPM vs. Exposure Findings

This is the single most important structural distinction in the entire service right now.

2.1 Security Hub CSPM — Compliance Standards Engine High-trap, rebrand
Was formerly called"AWS Security Hub" (pre-June 2025)
FunctionAutomated security checks against compliance standards
Standards supportedCIS AWS Foundations Benchmark, PCI DSS, NIST 800-53, AWS Foundational Security Best Practices (FSBP)
2.2 Exposure Findings — The New Correlation Layer High — newest capability
Inputs correlatedGuardDuty (threats) + Inspector (vulnerabilities) + Macie (sensitive data exposure) + Security Hub CSPM (misconfigurations)
OutputA single finding representing a combination of signals on a shared resource that together indicate meaningful, prioritized risk
2.3 Summary / Trends Dashboard
Historical windowUp to 1 year of historical data for findings and resources
ComparisonsDay-over-day, week-over-week, month-over-month trend analysis
WidgetsCustomizable — exposure summaries, threat trends, security coverage
2.4 OCSF Support
WhatOpen Cybersecurity Schema Framework support, alongside the existing ASFF (AWS Security Finding Format)
2.5 Insights (Legacy Feature)
WhatSaved searches grouping findings by a chosen attribute

AWS Exam Thinking

Requirement → Keywords → Expected Answer → why every distractor fails.

Check resource compliance against CIS/PCI/NIST standards
compliance standardCIS benchmarkPCI DSS
Expected Answer

Security Hub CSPM

DistractorWhy it's wrong
AWS ConfigProvides the underlying configuration evaluation engine, but doesn't package it as standardized, scored compliance frameworks the way Security Hub CSPM does
Audit ManagerCollects evidence for audit reporting frameworks, distinct from real-time security finding aggregation against these specific standards
Identify a combination of vulnerability + exposure + active threat as one prioritized risk
attack pathcorrelated riskprioritize across services
Expected Answer

Security Hub exposure findings

DistractorWhy it's wrong
Manually cross-reference GuardDuty, Inspector, and Macie consolesWorks but doesn't scale and isn't automatic/near-real-time the way exposure findings are
GuardDuty Extended Threat DetectionCorrelates WITHIN GuardDuty's own findings into an attack sequence; doesn't incorporate Inspector vulnerability data or Macie sensitive-data signals the way Security Hub exposure findings do
Get a single, centralized place where GuardDuty, Inspector, and Macie findings all appear
single pane of glassaggregate findings
Expected Answer

AWS Security Hub

DistractorWhy it's wrong
Amazon DetectiveOptionally ingests Security Hub-aggregated findings for investigation, but isn't itself the primary aggregation point
CloudWatchCan now ingest Security Hub CSPM findings (March 2026), but it's a downstream consumer, not the aggregation/correlation engine itself
See what percentage of the environment lacks vulnerability scanning or threat detection coverage
coverage gapvisibility
Expected Answer

Security Hub Security Coverage widget

DistractorWhy it's wrong
Count total findings per serviceTells you about existing findings, not about resources with NO coverage at all — a fundamentally different and important gap to see
Automatically remediate a specific high-confidence finding
automated remediationcustom action
Expected Answer

Security Hub custom actions via EventBridge, or the Automated Response and Remediation solution

DistractorWhy it's wrong
Security Hub remediates findings automatically by defaultIt doesn't — remediation requires explicit configuration of a custom action/EventBridge rule/Lambda, or deploying the dedicated remediation solution

Security Controls Mapping & Integrations

4 — Controls Mapping

Detective (aggregation/correlation)

Core identity — ingests, correlates, and prioritizes findings from GuardDuty, Inspector, Macie, and Security Hub CSPM into exposure findings

Governance & Compliance

Security Hub CSPM's standards (CIS, PCI DSS, NIST 800-53, FSBP) enforce and continuously score organizational compliance posture

Responsive (via integration, not automatic)

EventBridge custom actions, or the Automated Response and Remediation solution, trigger Lambda/Step Functions workflows off high-priority findings

⚠️ Security Hub does not replace GuardDuty, Inspector, or Macie

It aggregates and correlates their output — it has no native detection engine of its own beyond Security Hub CSPM's configuration checks. Disabling GuardDuty/Inspector/Macie removes those signal types from exposure findings entirely.

5 — Integrations

GuardDuty, Inspector, Macie
WhatPrimary upstream finding sources feeding both raw aggregation and exposure-finding correlation
EventBridge
WhatCustom actions and standard finding events both flow to EventBridge
PatternFinding/custom action → rule → Lambda/Step Functions for ticketing or remediation
Organizations
WhatDelegated administrator model, with a designated aggregation region for cross-region visibility
WhyCentralized findings and compliance scoring across every account and region in scope
Amazon CloudWatch
What(March 2026) Ingests Security Hub CSPM findings in ASFF and OCSF format via CloudWatch Pipelines
WhyCloudWatch Logs Insights queries, metric filters, and S3 Tables analytics directly on security findings
Detective
WhatDetective can optionally ingest Security Hub-aggregated findings (incl. Inspector) as an additional data source
Third-Party Products
WhatMany partner security tools integrate findings into Security Hub via ASFF/OCSF

Costs, Limits & Quotas

Pricing Model

CSPM checksPriced per security check evaluated, per account, per region
Finding ingestionVolume-based pricing for findings ingested from other services/partners
Trial30-day free trial

Common Cost Mistakes

Cost Optimization

Limits & Quotas

ScopeRegional, with cross-region aggregation available via a designated aggregation region
Exposure finding cardinalityA resource can be the primary resource in at most ONE exposure finding
Trends historyUp to 1 year of historical findings/resource data
⚠️ Exam trap

If a resource has no exposure traits, or insufficient traits, Security Hub does NOT generate an exposure finding for it — absence of an exposure finding does not necessarily mean the resource is risk-free, it may simply lack correlated signal from the contributing services.

Best Practices & Common Exam Traps

8 — Best Practices

Must Know
  • Security Hub CSPM = compliance/config checks (renamed from the original "Security Hub")
  • Enhanced Security Hub = correlation layer producing exposure findings
  • Exposure findings combine GuardDuty + Inspector + Macie + CSPM signals
  • Security Hub aggregates/correlates — it has no independent detection engine of its own beyond CSPM checks
Good Practice
  • Designate a single aggregation region for cross-region/account visibility
  • Enable only the compliance standards actually required by regulation
  • Use the Security Coverage widget to find visibility gaps, not just review existing findings
  • Build EventBridge custom actions for your highest-priority exposure finding types
Advanced Practice
  • Adopt OCSF where third-party tooling benefits from the industry-standard schema over ASFF
  • Pipe CSPM findings into CloudWatch for Logs Insights queries and S3 Tables-based long-term analytics
  • Use Trends widgets (day/week/month-over-month) to demonstrate security posture improvement over time to leadership/auditors

9 — Common Exam Traps

MisconceptionReality
"Security Hub and Security Hub CSPM are two separate, unrelated services"Security Hub CSPM is the renamed original Security Hub; the new Security Hub is built on top of it as a correlation layer — not a separate, disconnected product
"Security Hub detects threats itself"It has no independent threat-detection engine — threat signal comes from GuardDuty; Security Hub correlates it with other signals
"An exposure finding means three completely separate problems"It represents ONE correlated risk derived from multiple contributing signals on the SAME resource — the point is consolidation, not just listing three findings together
"Security Hub automatically fixes flagged misconfigurations"It requires explicit EventBridge custom actions or the separate Automated Response and Remediation solution — nothing is auto-remediated by default
"A resource can appear as the primary resource in multiple exposure findings simultaneously"A resource can be the primary resource in at most ONE exposure finding at a time

Security Hub vs. The Lookalikes

ServiceWhat it actually answers
vs AWS ConfigConfig evaluates individual resource configuration against custom/managed rules generally. Security Hub CSPM packages this concept into standardized, scored compliance frameworks (CIS/PCI/NIST/FSBP) specifically
vs Amazon DetectiveSecurity Hub aggregates and correlates findings org-wide to tell you WHAT to prioritize (exposure findings). Detective performs deep, graph-based investigation to tell you WHY/HOW once you've decided what to investigate. Used together in sequence, not interchangeably
vs GuardDuty Extended Threat DetectionETD correlates findings WITHIN GuardDuty itself (behavioral signals only) into an Attack Sequence finding. Security Hub's exposure findings correlate ACROSS services (GuardDuty + Inspector + Macie + CSPM) — broader scope, different services involved
vs AWS Audit ManagerAudit Manager collects and organizes evidence to support a specific audit/compliance framework reporting process. Security Hub CSPM continuously evaluates and scores compliance in near real-time as part of day-to-day security operations — different purposes, sometimes used together

Flashcards — 16 Cards

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Practice Quiz — 10 Questions

SCS-C02 scenario style, Easy → Specialty. Select an answer to reveal the explanation.

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