Kaluste: Infrastructure Modernization to Restore Security, Trust, and Scalability

ECS RDS GuardDuty WAF

About Kaluste

Kaluste is an e-commerce company specializing in high-quality furniture, serving customers who value craftsmanship, durability, and premium design. As the business grew, its digital platform became central to customer trust and revenue - making infrastructure security and reliability mission-critical.

Following a serious security incident that led to data loss, Kaluste made the decision to fully modernize its cloud infrastructure with security as a first-class principle.

Challenge

Kaluste’s legacy infrastructure suffered from critical weaknesses that ultimately resulted in a security breach.

Key challenges included:

  • Security gaps that allowed infrastructure compromise
  • Data loss, impacting customer trust and business operations
  • Limited visibility into configuration drift and compliance violations
  • Infrastructure that was difficult to scale safely during traffic peaks
  • No consistent, enforced security baseline across environments

After the incident, it was clear that incremental fixes were not enough. Kaluste needed a secure-by-design architecture that could prevent future incidents while supporting business growth.

Solution

Kaluste partnered with cloud security and DevOps specialists to redesign its infrastructure using AWS-native security services and modern container-based architecture. The new platform was built with security from day one, without sacrificing performance or cost efficiency.

1. Security-First Foundation

Security controls were embedded at every layer of the stack.

Threat Detection with Amazon GuardDuty

  • Amazon GuardDuty was enabled across all AWS accounts
  • Continuous monitoring for malicious activity and unauthorized behavior
  • Early detection of compromised credentials and anomalous network patterns

Configuration Compliance with AWS Config

  • AWS Config enforced continuous configuration monitoring
  • Drift detection ensured infrastructure remained compliant with security standards
  • Automated alerts flagged risky or non-compliant changes immediately

Network Hardening with NACLs

  • Strict Network Access Control Lists (NACLs) enforced least-privilege networking
  • Explicit allow/deny rules reduced attack surface
  • Isolation between public-facing and internal resources strengthened perimeter security

Application Protection with AWS WAF

  • AWS Web Application Firewall (WAF) protected the platform from common attacks
  • Mitigation against SQL injection, XSS, and bot-based abuse
  • Custom rules tailored to Kaluste’s traffic patterns

2. Containerized Architecture with Amazon ECS

Kaluste migrated its applications to Amazon Elastic Container Service (ECS).

  • Container isolation improved workload security
  • Auto scaling adjusted capacity based on real-time demand
  • Reduced blast radius in case of application-level issues

This architecture ensured resilience during peak shopping periods while maintaining strict security boundaries.

3. Secure and Managed Data Layer with Amazon RDS

The database layer was migrated to Amazon RDS to improve reliability and security.

  • Automated backups and encryption at rest
  • Multi-AZ deployments increased availability
  • Reduced operational risk compared to self-managed databases

4. Cost-Efficient and Secure Compute Strategy

Kaluste combined security with cost optimization:

  • Reserved Instances ensured predictable baseline capacity
  • Spot Instances handled non-critical and scalable workloads
  • This hybrid approach reduced costs without compromising reliability or security posture

Results

Restored Security and Customer Trust

  • Continuous threat detection and compliance monitoring prevented repeat incidents
  • Attack surface was significantly reduced across network and application layers
  • Security incidents became visible, actionable, and traceable

Scalable and Resilient Platform

  • ECS auto scaling handled traffic spikes during promotions and sales events
  • Infrastructure adapted dynamically without manual intervention
  • Improved fault isolation reduced operational risk

Optimized and Predictable Costs

  • Intelligent use of Spot and Reserved Instances reduced infrastructure spend
  • Secure architecture no longer came at the expense of cost efficiency

Security Embedded from Day One

  • Security controls were part of the deployment lifecycle, not an afterthought
  • Teams gained confidence to ship changes without introducing hidden risks
  • Compliance and security reviews became faster and more reliable

Conclusion

By rebuilding its infrastructure with security from day one, Kaluste transformed a critical incident into a long-term advantage.

Through the adoption of Amazon GuardDuty, AWS Config, enforced NACLs, AWS WAF, ECS with auto scaling, Amazon RDS, and optimized compute strategies, Kaluste achieved:

  • A hardened, attack-resistant platform
  • Improved scalability for e-commerce traffic peaks
  • Lower operational and infrastructure risk
  • A secure foundation ready to support future growth

Today, Kaluste operates on an infrastructure designed not just to scale — but to protect customer data, brand reputation, and business continuity.

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