Focusing on the technical aspects your development team needs to handle for ISO 27001 compliance, we will break it down into platform security, data security, infrastructure security, and continuous monitoring. Here’s a deep dive:

1. Platform Security

1.1 Secure Coding Practices

• Actions for Developers:
  • Use static and dynamic code analysis tools (e.g., SonarQube, Veracode) to identify vulnerabilities.
  • Implement input validation to prevent SQL injection and XSS attacks.
  • Follow OWASP Top 10 guidelines.
  • Use libraries with secure defaults, like BCrypt for password hashing.

1.2 Authentication and Authorization

• Development Tasks:
  • Implement OAuth 2.0 or OpenID Connect for secure user authentication.
  • Enforce Multi-Factor Authentication (MFA) for users and admins.
  • Use Role-Based Access Control (RBAC) to define and restrict permissions.
  • Tokenize sensitive session data with libraries like JWT.

1.3 Secure APIs

• Development Checklist:
  • Use HTTPS with TLS 1.3 for all API communications.
  • Implement API rate limiting to prevent abuse.
  • Use API gateways (e.g., Kong, AWS API Gateway) for centralized security policies.
  • Log all API requests with proper audit trails.

1.4 Secure Frontend Practices

• Frontend Tasks:
  • Sanitize all user inputs to prevent injection attacks.
  • Use Content Security Policy (CSP) headers to mitigate XSS risks.
  • Disable auto-fill for sensitive input fields.

2. Data Security

2.1 Data Encryption

• Tasks for Developers:
  • Encrypt data at rest using AES-256.
  • Encrypt data in transit using TLS 1.3.
  • Use secure key management solutions like AWS KMS or HashiCorp Vault.

2.2 Database Security

• Database Setup:
  • Use PostgreSQL as your database, configured with:
    • Role-based access control for database users.
    • Encryption for sensitive columns (e.g., PII, financial data).
    • Regular backups with checksum verification.

2.3 Secure Payment Handling

• For Financial Transactions:
  • Implement tokenization for credit card and bank account details.
  • Follow PCI DSS compliance standards for payments.
  • Use webhooks for payment updates, secured with shared secrets.