AWS Security Specialty (SCS-C03)
The definitive credential for AWS cloud security professionals
Exam Quick Facts
Exam Code
SCS-C03
Questions
65
Duration
170 minutes
Passing Score
750/1000 (~75%)
Cost
$300 USD
Valid For
3 years
Exam Version Since
2025
Difficulty
Expert
AWS Certified Security – Specialty Cheat Sheet (SCS-C03)
Every in-scope security service, detection pattern, IAM and data-protection decision the SCS-C03 exam actually tests — organised by the six exam domains with policy patterns and runbooks
Certification Overview
The AWS Certified Security Specialty (SCS-C03) is the premier security certification for AWS. It validates deep expertise in securing cloud workloads across identity management, infrastructure protection, data encryption, threat detection, incident response, and compliance governance.
This is not an entry-level certification. It assumes you already understand AWS architecture fundamentals and can design defense-in-depth strategies across multiple accounts and services. Questions are complex, scenario-driven, and often involve choosing between multiple security approaches that all provide some protection — you need to identify the one that best addresses the specific threat model described.
Cloud security is one of the most critical and in-demand specializations in tech. Every organization running on AWS needs security expertise, and this certification is the gold standard for proving you have it.
Who Should Take This Exam?
Security engineers, security architects, cloud security analysts, and compliance professionals who work primarily with AWS should pursue this certification. AWS recommends the equivalent of three to five years of experience securing cloud solutions, along with a strong understanding of identity management, encryption, and security monitoring.
It's also valuable for solutions architects and DevOps engineers who want to demonstrate security expertise as a specialization. In many organizations, the security review is the bottleneck for shipping — having deep security knowledge makes you more effective in any cloud role.
Exam Domains
Detection
Building monitoring and alerting for an account or a whole organization with GuardDuty, Security Hub, Macie and Config, and designing the logging behind it: organization CloudTrail trails, CloudWatch Logs, VPC Flow Logs, Route 53 Resolver logs and Security Lake. Also tests analysing logs with CloudWatch Logs Insights or Athena and troubleshooting monitoring that has stopped working.
Incident Response
Writing and testing incident response plans and runbooks, preparing accounts before anything happens, and automating remediation with Systems Manager, Step Functions and Lambda. During an event you capture logs as forensic evidence, validate findings, contain and recover the affected resources, and trace the root cause with Detective.
Infrastructure Security
Protecting the edge with CloudFront, WAF and Shield Advanced; hardening compute with secure AMIs and container images, Inspector scanning, Patch Manager and Session Manager; and network controls such as security groups, NACLs, Network Firewall, segmentation and secure hybrid connectivity. Guardrails for generative AI applications are new in SCS-C03.
Identity and Access Management
The largest domain. Authentication with IAM Identity Center, Cognito, MFA, federation and temporary STS credentials; authorization with least-privilege policies, permission boundaries, session policies, ABAC and RBAC, cross-account resource policies, Verified Permissions and IAM Roles Anywhere. Expect to troubleshoot denied or excessive access with the Policy Simulator and IAM Access Analyzer.
Data Protection
Encryption in transit (enforcing TLS, PrivateLink and VPC endpoints, inter-node encryption) and at rest with KMS or CloudHSM, plus integrity and retention controls like S3 Object Lock, Glacier Vault Lock, lifecycle rules and backups. Also covers rotating secrets with Secrets Manager, imported key material and external key stores, masking sensitive data, and managing keys and certificates across Regions.
Security Foundations and Governance
Running a secure multi-account environment with Organizations, Control Tower, SCPs, RCPs and declarative policies, delegated administrators and centralized root access. Includes deploying consistently with IaC and StackSets, Firewall Manager and RAM, and proving compliance with Config rules, Audit Manager and AWS Artifact.
Ready to test your SCS-C03 knowledge?
Practice with our free Security Specialty (SCS-C03) exam — 65 questions with detailed explanations. No signup required.
Start Free Practice ExamStudy Strategy
Build a multi-account security architecture. Set up AWS Organizations with SCPs, enable GuardDuty and Security Hub across accounts, configure Config Rules for compliance, and create automated remediation with Lambda. This hands-on project covers the majority of exam topics.
IAM is foundational — make sure you can write complex IAM policies from scratch, understand permission boundaries, and explain cross-account access patterns with role chaining. Also master KMS: key policies, grants, envelope encryption, and cross-account key sharing.
The exam tests your ability to design layered security. For any scenario, think about security at multiple layers: network (VPC, WAF), identity (IAM, Cognito), data (encryption, Macie), detection (GuardDuty, CloudTrail), and response (EventBridge, Lambda). Practice exams help develop this multi-layered thinking. Budget 6-10 weeks of study.
Key AWS Services to Know
- AWS IAM — advanced policies, permission boundaries, SCPs, Access Analyzer
- AWS KMS — key management, policies, grants, cross-account sharing
- AWS CloudHSM — hardware security modules for compliance
- Amazon GuardDuty — intelligent threat detection
- AWS Security Hub — centralized security posture management
- AWS Config — configuration compliance rules and remediation
- AWS CloudTrail — API audit trail across accounts
- AWS WAF — web application firewall rules
- AWS Shield Advanced — DDoS protection
- Amazon Macie — sensitive data discovery in S3
- AWS Secrets Manager — secrets rotation and management
- Amazon Cognito — user authentication and federation
Video: SCS-C03 Exam Preparation
Career Impact
Cloud security is consistently the most in-demand and highest-paying specialization in cloud computing. AWS security engineers and architects with the SCS-C03 typically command $150K-$220K+. In regulated industries like finance, healthcare, and government, this certification can be a hard requirement for senior security roles.
The security specialty also opens doors to consulting and advisory work. Organizations building their cloud security programs actively seek SCS-certified professionals to design their security architecture, compliance automation, and incident response procedures. It's a certification that pays dividends throughout your career.
Frequently Asked Questions
Is the AWS Security Specialty worth getting?
Absolutely. Cloud security roles are among the highest-paying in tech, and the SCS-C03 is the definitive AWS security credential. Especially valuable in regulated industries.
What are the most important services for the SCS-C03?
IAM, KMS, CloudHSM, GuardDuty, Security Hub, Config, CloudTrail, WAF, Shield, Macie, and Organizations SCPs. Understanding how they work together for defense in depth is key.
Do I need an associate cert first?
Not required, but recommended. The Solutions Architect Associate or CloudOps Engineer Associate provide foundational AWS knowledge the Security Specialty builds upon. With several years of hands-on cloud security experience, you can attempt it directly.
How does the SCS-C03 compare to other security certifications?
The SCS is AWS-specific, while certs like CISSP and CCSP are vendor-neutral. If you work primarily with AWS, the SCS proves deeper platform expertise. Many security professionals hold both an SCS and a vendor-neutral cert.
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Ready to test your SCS-C03 knowledge?
Practice with our free Security Specialty (SCS-C03) exam — 65 questions with detailed explanations. No signup required.
Start Free Practice Exam