FluentAzure takes security seriously and implements multiple layers of protection for handling sensitive configuration data, especially Azure Key Vault secrets.

• Memory Clearing: Secret values are securely overwritten in memory when cache entries are disposed
• Secure Disposal: KeyVaultSecretCache and KeyVaultSource implement secure disposal patterns
• Minimal Memory Exposure: Secrets are only kept in memory as long as necessary

• ConfigureAwait(false): All async operations use ConfigureAwait(false) to prevent deadlocks
• Proper Exception Handling: Comprehensive error handling without exposing sensitive information

• Polly Integration: Uses Polly for retry policies with exponential backoff
• Secure Failure Modes: Fails securely without exposing sensitive data in error messages

• Static Analysis: Comprehensive static code analysis rules enabled
• Security Rules: Specific security-focused analyzers activated
• Continuous Monitoring: CI/CD pipeline includes security scanning

1. Never log secret values - The library is designed to prevent accidental logging of secrets
2. Use secure disposal - Always dispose of configuration sources when done
3. ConfigureAwait usage - The library uses ConfigureAwait(false) internally for better performance

1. Managed Identity: Use Azure Managed Identity for Key Vault authentication
2. Network Security: Configure Key Vault network access rules appropriately
3. Audit Logging: Enable Key Vault audit logging for compliance
4. Secret Rotation: Implement regular secret rotation policies

If you discover a security vulnerability, please report it to the maintainers privately:

1. Do not create a public GitHub issue
2. Contact the maintainers directly via email
3. Provide detailed reproduction steps if possible

// ✅ Good - Secure configuration
var config = await FluentConfig
    .Create()
    .FromEnvironment()
    .FromKeyVault("https://myvault.vault.azure.net")
    .Required("DatabaseConnectionString")
    .BuildAsync();

// Use configuration
var connectionString = config.Match(
    success => success["DatabaseConnectionString"],
    errors => throw new SecurityException("Configuration failed")
);

// ✅ Good - Proper disposal
using var keyVaultSource = new KeyVaultSource(vaultUrl);
var result = await keyVaultSource.LoadAsync();
// Disposal automatically clears sensitive data

• SOC 2: Security controls align with SOC 2 Type II requirements
• PCI DSS: Suitable for PCI DSS environments when properly configured
• GDPR: Implements data minimization and secure deletion principles

Last Updated: 2024-12-19 Security Review: Complete