AI Email Validation Crisis: $48B Lost to Deepfake Scams

// Advanced AI email validation for fraud prevention
const validateAIEmail = async (email, context = {}) => {
  const params = new URLSearchParams({
    email: email,
    aiDetection: true,
    deepfakeScanning: true,
    syntheticIdentityCheck: true,
    behavioralAnalysis: true,
    riskScoring: true,
    threatIntelligence: true,
    linguisticAnalysis: true,
    crossPlatformValidation: true,
    domainIntelligence: true,
    velocityChecking: true,
    ...context
  });

  const response = await fetch(
    'https://api.email-check.app/v1-get-email-details?' + params,
    {
      headers: {
        'accept': 'application/json',
        'x-api-key': process.env.EMAIL_CHECK_API_KEY,
        'x-client-id': process.env.CLIENT_ID
      }
    }
  );

  const result = await response.json();

  // AI-powered risk assessment
  if (result.aiThreatScore > 0.8) {
    // High AI threat: Block immediately
    await securityAlert(result);
    throw new Error('AI-generated fraud detected');
  } else if (result.aiThreatScore > 0.5) {
    // Medium risk: Enhanced verification
    return {
      requiresEnhancedVerification: true,
      methods: ['biometric', 'document', 'video'],
      riskFactors: result.riskFactors
    };
  }

  return result;
};

// Enhanced security alerting
const securityAlert = async (validationResult) => {
  await fetch('/api/security/alerts', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({
      type: 'AI_FRAUD_ATTEMPT',
      email: validationResult.email,
      threatScore: validationResult.aiThreatScore,
      indicators: validationResult.aiIndicators,
      timestamp: new Date().toISOString()
    })
  });
};

// Sophisticated AI fraud detection logic
const processEmailRegistration = async (userData, deviceInfo, sessionData) => {
  const validationResult = await validateAIEmail(userData.email, {
    deviceFingerprint: deviceInfo.fingerprint,
    ipAddress: deviceInfo.ip,
    sessionId: sessionData.id,
    userAgent: deviceInfo.userAgent,
    timestamp: Date.now()
  });

  // AI threat level assessment
  const threatLevel = assessAIThreatLevel(validationResult, userData);

  switch (threatLevel) {
    case 'CRITICAL':
      // Immediate blocking and security escalation
      await escalateToSecurityTeam(validationResult);
      return {
        blocked: true,
        reason: 'Critical AI fraud detected',
        requiresManualReview: true
      };

    case 'HIGH':
      // Enhanced verification required
      return {
        requiresEnhancedVerification: true,
        methods: ['government_id', 'live_video', 'phone_verification'],
        temporaryRestrictions: true
      };

    case 'MEDIUM':
      // Step-up authentication
      return {
        requiresStepUpAuth: true,
        methods: ['sms_otp', 'email_verification'],
        monitoringLevel: 'enhanced'
      };

    case 'LOW':
      // Normal processing with monitoring
      return {
        approved: true,
        monitoringLevel: 'standard',
        requiresPeriodicRevalidation: true
      };
  }
};

// Advanced AI threat assessment
const assessAIThreatLevel = (validationResult, userData) => {
  const {
    aiThreatScore,
    syntheticIdentityScore,
    behavioralAnomalies,
    linguisticIndicators,
    domainRiskScore,
    crossPlatformInconsistencies
  } = validationResult;

  // Weighted AI threat calculation
  const weightedScore = (
    aiThreatScore * 0.3 +
    syntheticIdentityScore * 0.25 +
    behavioralAnomalies * 0.2 +
    linguisticIndicators * 0.15 +
    domainRiskScore * 0.1
  );

  if (weightedScore > 0.8) return 'CRITICAL';
  if (weightedScore > 0.6) return 'HIGH';
  if (weightedScore > 0.4) return 'MEDIUM';
  return 'LOW';
};