alfred-logger-sdk/SECURITY.md

Production-ready data collection SDK for feeding structured events to LLM Data Agents with auto-capture capabilities

# Security Guidelines

## Data Sanitization

The Alfred Logger SDK implements several security measures to protect sensitive data:

### Automatic Data Sanitization

By default, the SDK automatically sanitizes sensitive fields containing keywords like:
- `password`
- `token` 
- `key`
- `secret`
- `auth`
- `credential`

These fields are replaced with `[REDACTED]` in logged events.

### Configuration

```javascript
const logger = new Logger({
  endpoint: 'https://your-api.com/events',
  sanitizePayloads: true, // Enable data sanitization (default: true)
  // ... other config
});
```

## Security Features

### Input Validation
- All configuration parameters are validated
- Event data size limits prevent DoS attacks
- Buffer size limits prevent memory exhaustion
- URL validation prevents malicious endpoints

### Rate Limiting
- Built-in request rate limiting
- Configurable delay between requests
- Prevents API abuse

### Error Handling
- Sensitive information not logged in errors
- Failed requests handled gracefully
- No exposure of internal state

### Memory Management
- Automatic buffer overflow protection
- Event size limits
- Proper cleanup on shutdown

## Best Practices

1. **Use HTTPS endpoints only**
2. **Rotate API keys regularly**
3. **Monitor for unusual activity**
4. **Keep payload sanitization enabled**
5. **Set appropriate buffer and size limits**

## Reporting Security Issues

Please report security vulnerabilities responsibly by contacting the maintainers directly rather than opening public issues.