AWS Shield
AWS Shield provides managed DDoS protection. Standard is included free. Advanced provides enhanced protection, 24/7 response team access, and cost protection.
What is Shield? (Simple Explanation)
Think of Shield like a bulletproof vest for your website. It absorbs massive DDoS attacks that would otherwise take your site down, automatically and without you doing anything.
When Would You Use Shield?
- Always-on DDoS detection
- Layer 3/4 protection (Standard)
- Application-layer protection (Advanced)
- 24/7 DDoS response team
Who Uses Shield?
From startups to enterprises, Shield powers:
What Makes Shield Powerful
Shield Pricing & Free Tier
Core security services (IAM, KMS, CloudTrail, Shield Standard) are always free. Advanced features (GuardDuty, WAF, Shield Advanced) have per-usage pricing.
Shield Best Practices
- 1Enable MFA on all IAM users and root account
- 2Never use root account for daily tasks — create IAM users with least privilege
- 3Enable CloudTrail across all regions with log file validation
- 4Rotate access keys every 90 days and never commit them to source control
- 5Use IAM roles for EC2/Lambda/ECS instead of long-term access keys
Getting Started with Shield in 5 Minutes
- 1Open the AWS Console and navigate to Shield
- 2Review the default settings — most security services are pre-configured with best-practice defaults
- 3Define your policies, rules, or detection scope based on your environment
- 4Enable logging to CloudTrail and set up alerts to SNS for critical findings
Shield CLI Quick Reference
2 production-ready commands. Full CLI Library (225+ services) →
aws shield describe-subscription --query 'Subscription.{Status:SubscriptionState,AutoRenew:AutoRenew}'View Shield Advanced subscription statusaws shield list-protections --query 'Protections[*].{Resource:ResourceArn,ID:Id}' --output tableList all protected resourcesPros & Cons of Shield
Pros
- Automatic inline mitigation (Standard - free)
- DDoS Response Team access (Advanced)
- Cost protection during DDoS attacks (Advanced)
- Real-time attack visibility dashboard
Cons
- ✕Proper IAM policy design has a steep learning curve — overly permissive policies are common
- ✕Root account is a single point of failure if MFA is lost
- ✕CloudTrail logs can become expensive at scale without lifecycle management
Shield vs Alternatives
Shield vs WAF
Choose Shield for Always-on DDoS detection and Layer 3/4 protection (Standard). It excels at automatic inline mitigation (standard - free).
Choose WAF as an alternative when your requirements differ. Each service in the Security category serves different architectural patterns.
Services That Work with Shield
Shield is rarely used alone. It is typically combined with:
Compliance & Security
How AWS Shield fits into major compliance standards. Browse all 41 frameworks →
Shield configuration is audited by CIS Benchmarks v1.5–v3.0 for secure cloud defaults.
NIST 800-53Shield access controls, encryption, and audit logging map to NIST 800-53 AC, SC, and AU control families.
PCI DSS 4.0Shield encryption, access control, and logging support PCI DSS for cardholder data environments.
SOC 2Shield security, availability, and confidentiality controls evaluated under SOC 2 Trust Services Criteria.
ISO 27001Shield configuration and monitoring controls map to ISO 27001 Annex A information security management.
Frequently Asked Questions About Shield
What is AWS Shield?
AWS Shield provides managed DDoS protection. Standard is included free. Advanced provides enhanced protection, 24/7 response team access, and cost protection.
What is Shield used for?
Shield is commonly used for: Always-on DDoS detection; Layer 3/4 protection (Standard); Application-layer protection (Advanced); 24/7 DDoS response team. It's a core service in the security category of AWS.
Is Shield free?
Core security services (IAM, KMS, CloudTrail, Shield Standard) are always free. Advanced features (GuardDuty, WAF, Shield Advanced) have per-usage pricing.
What are the key features of Shield?
Shield's most important capabilities include: Automatic inline mitigation (Standard - free). DDoS Response Team access (Advanced). Cost protection during DDoS attacks (Advanced). Real-time attack visibility dashboard. Each of these is designed to help teams always-on ddos detection.
How does Shield compare to alternatives?
Shield competes with both AWS-native alternatives (WAF, CloudFront, ELB) and third-party equivalents. The right choice depends on your specific requirements for scalability, cost, and operational overhead. See the comparisons section below for detailed guidance.
Which compliance frameworks apply to Shield?
CIS AWS v3.0: Shield configuration is audited by CIS Benchmarks v1.5–v3.0 for secure cloud defaults. NIST 800-53: Shield access controls, encryption, and audit logging map to NIST 800-53 AC, SC, and AU control families. PCI DSS 4.0: Shield encryption, access control, and logging support PCI DSS for cardholder data environments. SOC 2: Shield security, availability, and confidentiality controls evaluated under SOC 2 Trust Services Criteria. ISO 27001: Shield configuration and monitoring controls map to ISO 27001 Annex A information security management.
People also search for
Was this page helpful?
Ready to secure your Shield configuration?
Pavora continuously monitors your AWS Shield for misconfigurations, compliance violations, and security risks.