Managing Vendor Relationships and Contracts

Managing Vendor Relationships and Contracts

GDPR requires data processing agreements (DPAs) with all third parties processing personal data on your behalf. CCPA mandates specific contractual provisions for service providers. These legal requirements translate into technical implications: you must be able to enforce contractual terms through technical controls, monitor compliance, and respond quickly to vendor breaches or non-compliance.

Vendor assessment should include technical privacy capabilities alongside traditional security evaluations. Can the vendor support data subject rights requests? Do they offer data portability in standard formats? Can they guarantee data deletion upon contract termination? These technical capabilities directly impact your ability to maintain compliance when using their services.

// Vendor privacy compliance manager
class VendorComplianceManager {
  constructor() {
    this.vendors = new Map();
    this.assessments = new Map();
    this.contracts = new Map();
    this.monitor = new ComplianceMonitor();
  }

  // Assess vendor privacy capabilities
  async assessVendor(vendorInfo) {
    const assessment = {
      vendorId: vendorInfo.id,
      assessmentDate: new Date().toISOString(),
      categories: {}
    };

    // Technical privacy controls
    assessment.categories.technicalControls = await this.assessTechnicalControls(vendorInfo);
    
    // Data handling practices
    assessment.categories.dataHandling = await this.assessDataHandling(vendorInfo);
    
    // Compliance certifications
    assessment.categories.certifications = await this.verifyCertifications(vendorInfo);
    
    // Incident response capabilities
    assessment.categories.incidentResponse = await this.assessIncidentResponse(vendorInfo);
    
    // Calculate overall score
    assessment.overallScore = this.calculateComplianceScore(assessment.categories);
    
    // Generate recommendations
    assessment.recommendations = this.generateRecommendations(assessment);
    
    this.assessments.set(vendorInfo.id, assessment);
    return assessment;
  }

  // Assess technical privacy controls
  async assessTechnicalControls(vendorInfo) {
    const controls = {
      encryption: {
        atRest: await this.verifyEncryptionAtRest(vendorInfo),
        inTransit: await this.verifyEncryptionInTransit(vendorInfo),
        keyManagement: await this.assessKeyManagement(vendorInfo)
      },
      accessControls: {
        authentication: await this.assessAuthentication(vendorInfo),
        authorization: await this.assessAuthorization(vendorInfo),
        auditLogging: await this.verifyAuditLogging(vendorInfo)
      },
      dataIsolation: {
        logical: await this.assessLogicalIsolation(vendorInfo),
        physical: await this.assessPhysicalIsolation(vendorInfo),
        multiTenancy: await this.assessMultiTenancy(vendorInfo)
      }
    };
    
    return this.scoreControls(controls);
  }

  // Monitor ongoing vendor compliance
  setupVendorMonitoring(vendorId) {
    const vendor = this.vendors.get(vendorId);
    
    // API monitoring
    this.monitor.addAPIMonitor({
      vendorId,
      endpoints: vendor.apiEndpoints,
      checks: {
        availability: { interval: '5min' },
        performance: { threshold: '2000ms' },
        errorRate: { threshold: '1%' },
        dataValidation: { enabled: true }
      }
    });
    
    // Compliance monitoring
    this.monitor.addComplianceMonitor({
      vendorId,
      checks: {
        certificateExpiry: { alert: '30days' },
        contractualSLAs: vendor.slas,
        dataResidency: { regions: vendor.allowedRegions },
        incidentNotification: { maxDelay: '72hours' }
      }
    });
    
    // Data flow monitoring
    this.monitor.addDataFlowMonitor({
      vendorId,
      tracking: {
        volumeAnomaly: { threshold: '3x' },
        newDataTypes: { alert: true },
        unauthorizedAccess: { block: true }
      }
    });
  }

  // Handle vendor compliance incidents
  async handleComplianceIncident(incident) {
    const response = {
      incidentId: incident.id,
      vendorId: incident.vendorId,
      actions: []
    };

    // Immediate actions
    if (incident.severity === 'critical') {
      // Suspend data flows
      await this.suspendDataFlows(incident.vendorId);
      response.actions.push('data_flows_suspended');
      
      // Notify privacy team
      await this.notifyPrivacyTeam(incident);
      response.actions.push('privacy_team_notified');
    }
    
    // Investigate impact
    const impact = await this.assessIncidentImpact(incident);
    response.impact = impact;
    
    // Determine if breach notification required
    if (this.requiresBreachNotification(impact)) {
      await this.initiateBreachResponse(incident, impact);
      response.actions.push('breach_response_initiated');
    }
    
    // Document incident
    await this.documentIncident(incident, response);
    
    return response;
  }
}

// Contract enforcement engine
class ContractEnforcementEngine {
  constructor() {
    this.contracts = new Map();
    this.enforcers = new Map();
  }

  // Create technical enforcement for contractual terms
  createEnforcement(contractTerms) {
    const enforcement = {
      dataRetention: this.enforceRetention(contractTerms.retention),
      dataLocation: this.enforceLocation(contractTerms.allowedRegions),
      accessRestrictions: this.enforceAccess(contractTerms.accessLimits),
      processingPurposes: this.enforcePurpose(contractTerms.purposes),
      subprocessors: this.enforceSubprocessors(contractTerms.subprocessorRules)
    };
    
    return enforcement;
  }

  // Enforce data retention limits
  enforceRetention(retentionTerms) {
    return {
      maxRetention: retentionTerms.maximum,
      monitor: async (vendorId) => {
        const retentionData = await this.checkVendorRetention(vendorId);
        const violations = retentionData.filter(
          item => item.age > retentionTerms.maximum
        );
        
        if (violations.length > 0) {
          await this.handleRetentionViolation(vendorId, violations);
        }
      }
    };
  }

  // Enforce geographic restrictions
  enforceLocation(allowedRegions) {
    return {
      validator: (dataLocation) => allowedRegions.includes(dataLocation),
      monitor: async (vendorId) => {
        const locations = await this.detectDataLocations(vendorId);
        const violations = locations.filter(
          loc => !allowedRegions.includes(loc.region)
        );
        
        if (violations.length > 0) {
          await this.handleLocationViolation(vendorId, violations);
        }
      }
    };
  }
}