Purpose

This document establishes the security and compliance standards for hosting MailSlurp’s application environment in AWS, Twilio, and Google Cloud. It ensures that our multi-cloud strategy meets enterprise SaaS expectations through consistent security controls, robust governance, and adherence to industry best practices.

Scope

This policy applies to all MailSlurp cloud-based resources and services, including infrastructure, platforms, and applications hosted on:

  • Amazon Web Services (AWS)
  • Twilio
  • Google Cloud Platform (GCP)

Roles and Responsibilities

  • Cloud Security Team: Oversees implementation and continuous improvement of cloud security controls.
  • Operations Team: Manages deployment, monitoring, and day-to-day operational activities across all cloud environments.
  • Compliance and Audit Team: Conducts periodic reviews and audits to ensure adherence to internal policies and external regulatory requirements.
  • Developers and Engineers: Follow secure coding practices and configuration standards when deploying applications in the cloud.

Multi-Cloud Architecture and Deployment

  • Infrastructure as Code (IaC): All cloud resources are provisioned and managed using tools such as Terraform and CloudFormation, ensuring consistency, traceability, and auditability.
  • Environment Segmentation: Separate environments (development, testing, production) are maintained and isolated using virtual networks, subnets, and security groups.
  • Redundancy and Resiliency: Services are architected for high availability with automated failover, load balancing, and geographic diversity across cloud providers.

Security and Compliance Requirements

  • Data Encryption: Sensitive data is encrypted at rest and in transit using industry-standard algorithms (e.g., AES-256 for storage and TLS 1.2+ for communication). Native key management services (e.g., AWS KMS, GCP Cloud KMS) are utilized.
  • Access Control: Role-based access control (RBAC) is enforced across all platforms, with multi-factor authentication (MFA) required for privileged accounts. Strict IAM policies limit access to only those necessary for operational roles.
  • Logging and Monitoring: Comprehensive logging and monitoring are implemented across all cloud environments using AWS CloudWatch, Google Cloud’s operations suite, and integrated SIEM solutions. Logs are centralized and retained per regulatory requirements.
  • Vulnerability Management: Regular vulnerability assessments, penetration tests, and security scans are performed to identify and remediate potential risks.
  • Incident Response: Integrated incident response plans ensure rapid detection, containment, and remediation of security incidents, with clear escalation procedures and post-incident reviews.
  • Compliance Audits: Routine internal and external audits are conducted to verify adherence to standards such as ISO 27001, SOC 2, GDPR, and other relevant regulations.

AWS Specific Standards

  • Service Configuration: AWS resources are secured using best practices, including the use of IAM roles, Virtual Private Cloud (VPC) segmentation, and AWS CloudTrail for audit logging.
  • Backup and DR: Automated backups, multi-region replication, and disaster recovery strategies are implemented to ensure data durability and service continuity.
  • Continuous Monitoring: Tools like AWS Config and CloudWatch are used to monitor compliance and detect configuration drifts.

Twilio Specific Standards

  • API Security: Twilio’s services are accessed via secure API calls protected by TLS encryption and controlled via strict API key management.
  • Data Handling: Twilio ensures that all communication data (e.g., SMS, voice) is processed in accordance with privacy regulations and stored securely.
  • Service Reliability: Redundancy and failover mechanisms are in place to ensure uninterrupted service, supported by regular reviews of Twilio’s operational status and SLAs.

Google Cloud Platform Specific Standards

  • Resource Management: GCP resources are managed using Google Cloud IAM, VPC Service Controls, and security command center tools to maintain a secure posture.
  • Encryption and Key Management: All data is encrypted using Google-managed or customer-managed encryption keys, with Cloud KMS ensuring robust key lifecycle management.
  • Monitoring and Logging: Google Cloud’s operations suite provides real-time monitoring, logging, and alerting, ensuring visibility into system performance and security events.

Data Governance and Privacy

  • Data Residency and Compliance: Data is stored and processed in compliance with applicable local and international regulations. Data residency requirements are strictly enforced.
  • Privacy Controls: Personal and sensitive data is handled according to GDPR, CCPA, and other relevant privacy frameworks, ensuring robust protection of customer information.
  • Continuous Training: Regular training sessions ensure that all staff are aware of cloud security best practices and compliance obligations.

Review and Continuous Improvement

  • Annual Review: This policy is reviewed and updated annually, or when significant changes occur in technology or regulatory requirements.
  • Audit and Reporting: Regular audits verify compliance with this policy, and audit findings are reported to senior management.
  • Feedback Loop: Incident reviews, audit feedback, and emerging threat intelligence are continuously integrated to enhance our cloud security practices.

Conclusion

MailSlurp’s cloud policy/standard is designed to secure our multi-cloud environment across AWS, Twilio, and Google Cloud. By leveraging advanced security controls, continuous monitoring, and rigorous compliance measures, we ensure that our SaaS offerings remain resilient, secure, and compliant with industry best practices.

Approved by: Jack Mahoney, CTO
Approval Date: January 15, 2025
Next Review Date: January 15, 2026