This project implements multiple layers of security:

• TLS 1.2+ encryption for all traffic
• HTTP/2 protocol for gRPC connections
• Certificate validation using AWS Certificate Manager
• Automatic HTTP to HTTPS redirect

• VPC isolation with public/private subnet separation
• Security groups with least-privilege access
• AWS IAM roles with minimal required permissions
• No public IPs on application containers

• Bearer token authentication for gRPC endpoints
• Configurable authentication methods
• No hardcoded secrets in code or containers
• Environment-based configuration

If you discover a security vulnerability, please:

1. DO NOT open a public GitHub issue
2. Email security details to: [your-email@domain.com]
3. Include:
   • Description of the vulnerability
   • Steps to reproduce
   • Potential impact
   • Suggested fix (if any)

We will respond within 48 hours and provide updates on the fix timeline.

✅ DO:

• Use strong SSL certificates from trusted CAs
• Rotate AWS credentials regularly
• Monitor CloudWatch logs for suspicious activity
• Keep Terraform and Docker images updated
• Use AWS IAM roles instead of long-lived keys when possible
• Enable AWS CloudTrail for audit logging

❌ DON'T:

• Commit aws-env.sh or terraform.tfvars to version control
• Use self-signed certificates in production
• Expose ALB to 0.0.0.0/0 if not needed
• Use overly permissive IAM policies
• Share SSL certificates across multiple environments

✅ DO:

• Scan for secrets before committing
• Use environment variables for configuration
• Follow least-privilege principle for AWS resources
• Add security tests for new features
• Document security implications of changes

❌ DON'T:

• Hardcode credentials or certificates
• Disable security features for testing
• Commit sensitive test data
• Use wide-open security groups

Before deploying to production:

• SSL certificate is valid and from trusted CA
• AWS credentials have minimal required permissions
• Security groups restrict access to necessary ports only
• CloudWatch logging is enabled and monitored
• Terraform state is stored securely (remote backend recommended)
• All sensitive files are in .gitignore
• Container images are scanned for vulnerabilities
• Network access is properly restricted

Monitor these CloudWatch metrics and logs:

• ALB access logs - Monitor for unusual traffic patterns
• ECS container logs - Watch for authentication failures
• CloudWatch metrics - Track error rates and response times
• AWS CloudTrail - Monitor API calls and configuration changes

If you suspect a security incident:

1. Isolate - Scale ECS service to 0 if needed
2. Document - Capture logs and metrics
3. Analyze - Review CloudWatch and CloudTrail logs
4. Respond - Rotate credentials, update security groups
5. Recovery - Deploy fixes and resume operations
6. Review - Conduct post-incident review

This architecture supports compliance with:

• SOC 2 Type II - Through AWS shared responsibility model
• GDPR - Data encryption and logging capabilities
• HIPAA - When deployed with appropriate AWS configurations
• PCI DSS - Network isolation and encryption features

Note: Compliance ultimately depends on your specific implementation and usage patterns.