Security Response Strategies

Security Response Strategies

Strategy 1: Graceful Degradation (Recommended)

Gradually restrict functionality based on threat severity:

class SecurityManager {
  static Future<void> handleSecurityStatus() async {
    // getRejectReasons() returns a newline-separated string; split it into a list
    final rejectReasonsRaw = await AlphynSdk.getRejectReasons();
    final rejectReasons = rejectReasonsRaw.split('\n').where((line) => line.trim().isNotEmpty).toList();
    final riskFactors = await AlphynSdk.getAllRiskFactors();

    if (rejectReasons.isEmpty) {
      // TRUSTED - Full functionality
      print('✅ Full access granted');
      enableAllFeatures();
    } else if (rejectReasons.length < 3) {
      // FLAGGED - Limited functionality
      print('⚠️ Operating in restricted mode');
      disableSensitiveFeatures();
      logSecurityEvent(rejectReasons);
      showSecurityWarning();
    } else {
      // UNTRUSTED - Minimal or no functionality
      print('🚨 Critical security violation');
      disableAllSensitiveFeatures();
      logCriticalSecurityEvent(rejectReasons);
      showCriticalSecurityAlert();
    }
  }

  static void enableAllFeatures() {
    // Enable payments, sensitive data access, etc.
  }

  static void disableSensitiveFeatures() {
    // Disable payments, limit data access
  }

  static void disableAllSensitiveFeatures() {
    // Block all sensitive operations
  }

  static void showSecurityWarning() {
    // Show user-friendly warning dialog
  }

  static void showCriticalSecurityAlert() {
    // Show critical security alert with explanation
  }

  static void logSecurityEvent(List<String> reasons) {
    // Log to analytics/monitoring service
  }

  static void logCriticalSecurityEvent(List<String> reasons) {
    // Log critical event with full details
  }
}

Strategy 2: Risk-Based Decision Making

Make decisions based on specific risk factors:

class RiskBasedSecurityHandler {
  static Future<void> evaluateSecurity() async {
    // getRejectReasons() returns a newline-separated string; split it into a list
    final rejectReasonsRaw = await AlphynSdk.getRejectReasons();
    final rejectReasons = rejectReasonsRaw.split('\n').where((line) => line.trim().isNotEmpty).toList();
    final riskFactors = await AlphynSdk.getAllRiskFactors();

    // Check for critical threats
    final hasCriticalThreats = _checkCriticalThreats(rejectReasons);
    final hasDebuggerAttached = _checkDebugger(rejectReasons);
    final isRooted = _checkRootAccess(rejectReasons);

    if (hasCriticalThreats) {
      print('🚨 Critical threat detected - terminating');
      terminateApp();
    } else if (hasDebuggerAttached) {
      print('⚠️ Debugger detected - limiting functionality');
      disableDebugSensitiveFeatures();
    } else if (isRooted) {
      print('⚠️ Root/Jailbreak detected');
      handleRootedDevice();
    } else {
      print('✅ No significant threats');
      proceedNormally();
    }
  }

  static bool _checkCriticalThreats(List<String> reasons) {
    // Check for critical detection types from actual SDK output
    final criticalDetections = [
      'FRIDA_DETECTED',
      'FRIDA_SERVER_RUNNING',
      'SIMULATOR_RUNTIME',
      'HOOK_DETECTED',
      'TAMPERED',
      'MODIFIED'
    ];

    return reasons.any((reason) =>
      criticalDetections.any((detection) =>
        reason.toUpperCase().contains(detection)
      )
    );
  }

  static bool _checkDebugger(List<String> reasons) {
    // Check for debugger-related detections
    final debuggerDetections = [
      'DEBUGGER_SYSTEM_CHECK',
      'DEBUGGER_PROCESS_CHECK',
      'DEBUGGER_EXCEPTION_CHECK'
    ];

    return reasons.any((reason) =>
      debuggerDetections.any((detection) =>
        reason.toUpperCase().contains(detection)
      )
    );
  }

  static bool _checkRootAccess(List<String> reasons) {
    // Check for root/jailbreak detections
    final rootDetections = [
      'ROOT_DETECTED',
      'JAILBREAK_DETECTED',
      'SUPERUSER',
      'SU_BINARY'
    ];

    return reasons.any((reason) =>
      rootDetections.any((detection) =>
        reason.toUpperCase().contains(detection)
      )
    );
  }

  static bool _checkSimulatorOrEmulator(List<String> reasons) {
    // Check for simulator/emulator detections
    final simulatorDetections = [
      'SIMULATOR_ENVIRONMENT',
      'SIMULATOR_RUNTIME',
      'EMULATOR_DETECTED'
    ];

    return reasons.any((reason) =>
      simulatorDetections.any((detection) =>
        reason.toUpperCase().contains(detection)
      )
    );
  }

  static void terminateApp() {
    // Log event and exit app
    // SystemNavigator.pop() or exit(0)
  }

  static void disableDebugSensitiveFeatures() {
    // Disable features vulnerable to debugging
  }

  static void handleRootedDevice() {
    // Show warning or restrict features
  }

  static void proceedNormally() {
    // Continue with full functionality
  }
}

Strategy 3: Continuous Monitoring

Implement periodic security checks:

class ContinuousSecurityMonitor {
  Timer? _monitoringTimer;

  void startMonitoring({Duration interval = const Duration(minutes: 5)}) {
    _monitoringTimer?.cancel();

    _monitoringTimer = Timer.periodic(interval, (timer) async {
      await performSecurityCheck();
    });

    // Initial check
    performSecurityCheck();
  }

  void stopMonitoring() {
    _monitoringTimer?.cancel();
    _monitoringTimer = null;
  }

  Future<void> performSecurityCheck() async {
    try {
      // getRejectReasons() returns a newline-separated string; split it into a list
      final rejectReasonsRaw = await AlphynSdk.getRejectReasons();
      final rejectReasons = rejectReasonsRaw.split('\n').where((line) => line.trim().isNotEmpty).toList();
      final lastScanDate = await AlphynSdk.getLastScanDate();

      print('🔍 Security check at: ${DateTime.now()}');
      print('Last scan: $lastScanDate');
      print('Threats: ${rejectReasons.length}');

      if (rejectReasons.isNotEmpty) {
        handleSecurityThreats(rejectReasons);
      }

      // Check if scan is stale (older than expected interval)
      if (lastScanDate != null) {
        final timeSinceLastScan = DateTime.now().difference(lastScanDate);
        if (timeSinceLastScan > const Duration(minutes: 10)) {
          print('⚠️ Warning: Scan data is stale');
        }
      }
    } catch (e) {
      print('❌ Security check failed: $e');
    }
  }

  void handleSecurityThreats(List<String> threats) {
    // Implement threat response logic
    for (var threat in threats) {
      print('⚠️ Threat detected: $threat');
    }
  }
}