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class PolicyLayer:
    def __init__(self):
        self.policies = {}
        self.procedures = {}
        self.compliance_frameworks = {
            'ISO_27001': {'coverage': 0.9, 'maturity': 'high'},
            'NIST': {'coverage': 0.8, 'maturity': 'medium'},
            'COBIT': {'coverage': 0.7, 'maturity': 'medium'}
        }
    
    def create_policy(self, policy_id, policy_config):
        """Crear política de seguridad"""
        self.policies[policy_id] = {
            'policy_id': policy_id,
            'name': policy_config['name'],
            'category': policy_config['category'],
            'scope': policy_config['scope'],
            'requirements': policy_config.get('requirements', []),
            'enforcement_level': policy_config.get('enforcement_level', 'mandatory'),
            'review_frequency': policy_config.get('review_frequency', 'annual'),
            'last_review': None,
            'next_review': None,
            'compliance_status': 'pending'
        }
    
    def create_procedure(self, procedure_id, procedure_config):
        """Crear procedimiento de seguridad"""
        self.procedures[procedure_id] = {
            'procedure_id': procedure_id,
            'name': procedure_config['name'],
            'policy_id': procedure_config['policy_id'],
            'steps': procedure_config.get('steps', []),
            'responsible_role': procedure_config.get('responsible_role', 'Security_Team'),
            'frequency': procedure_config.get('frequency', 'as_needed'),
            'automation_level': procedure_config.get('automation_level', 'manual'),
            'success_metrics': procedure_config.get('success_metrics', [])
        }
    
    def assess_policy_coverage(self):
        """Evaluar cobertura de políticas"""
        coverage_areas = {
            'access_control': 0,
            'data_protection': 0,
            'incident_response': 0,
            'business_continuity': 0,
            'compliance': 0
        }
        
        for policy in self.policies.values():
            category = policy['category']
            if category in coverage_areas:
                coverage_areas[category] += 1
        
        total_policies = len(self.policies)
        coverage_percentage = {
            area: (count / total_policies * 100) if total_policies > 0 else 0
            for area, count in coverage_areas.items()
        }
        
        return coverage_percentage
    
    def get_policy_effectiveness(self, policy_id):
        """Obtener efectividad de política"""
        if policy_id not in self.policies:
            return None
        
        policy = self.policies[policy_id]
        
        # Factores de efectividad
        factors = {
            'clarity': 0.8,  # Claridad de la política
            'enforcement': 0.7,  # Nivel de cumplimiento
            'awareness': 0.9,  # Conocimiento del personal
            'review_frequency': 0.6,  # Frecuencia de revisión
            'compliance': 0.8  # Cumplimiento normativo
        }
        
        effectiveness = sum(factors.values()) / len(factors)
        
        return {
            'policy_id': policy_id,
            'effectiveness_score': effectiveness,
            'factors': factors,
            'recommendations': self.get_improvement_recommendations(factors)
        }
    
    def get_improvement_recommendations(self, factors):
        """Obtener recomendaciones de mejora"""
        recommendations = []
        
        if factors['clarity'] < 0.8:
            recommendations.append('Mejorar claridad de la política')
        if factors['enforcement'] < 0.8:
            recommendations.append('Aumentar nivel de cumplimiento')
        if factors['awareness'] < 0.8:
            recommendations.append('Mejorar capacitación del personal')
        if factors['review_frequency'] < 0.8:
            recommendations.append('Aumentar frecuencia de revisión')
        if factors['compliance'] < 0.8:
            recommendations.append('Mejorar cumplimiento normativo')
        
        return recommendations

# Ejemplo de uso
policy_layer = PolicyLayer()

# Crear políticas
policy_layer.create_policy('POL-001', {
    'name': 'Access Control Policy',
    'category': 'access_control',
    'scope': 'All users and systems',
    'requirements': ['Authentication', 'Authorization', 'Audit'],
    'enforcement_level': 'mandatory'
})

policy_layer.create_policy('POL-002', {
    'name': 'Data Protection Policy',
    'category': 'data_protection',
    'scope': 'All data assets',
    'requirements': ['Encryption', 'Classification', 'Retention'],
    'enforcement_level': 'mandatory'
})

# Evaluar cobertura
coverage = policy_layer.assess_policy_coverage()
print(f"Cobertura de políticas: {coverage}")

# Evaluar efectividad
effectiveness = policy_layer.get_policy_effectiveness('POL-001')
print(f"Efectividad de política: {effectiveness['effectiveness_score']:.2f}")

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class PhysicalSecurityLayer:
    def __init__(self):
        self.physical_controls = {}
        self.access_points = {}
        self.monitoring_systems = {}
        self.environmental_controls = {}
    
    def install_physical_control(self, control_id, control_config):
        """Instalar control físico"""
        self.physical_controls[control_id] = {
            'control_id': control_id,
            'type': control_config['type'],
            'location': control_config['location'],
            'function': control_config['function'],
            'status': 'active',
            'last_maintenance': None,
            'next_maintenance': None,
            'effectiveness': 0.0
        }
    
    def create_access_point(self, point_id, point_config):
        """Crear punto de acceso"""
        self.access_points[point_id] = {
            'point_id': point_id,
            'name': point_config['name'],
            'location': point_config['location'],
            'access_type': point_config['access_type'],
            'controls': point_config.get('controls', []),
            'monitoring': point_config.get('monitoring', True),
            'access_log': []
        }
    
    def log_access_attempt(self, point_id, user_id, access_type, timestamp, success):
        """Registrar intento de acceso"""
        if point_id in self.access_points:
            access_record = {
                'user_id': user_id,
                'access_type': access_type,
                'timestamp': timestamp,
                'success': success,
                'point_id': point_id
            }
            
            self.access_points[point_id]['access_log'].append(access_record)
    
    def assess_physical_security(self):
        """Evaluar seguridad física"""
        assessment = {
            'total_controls': len(self.physical_controls),
            'active_controls': len([c for c in self.physical_controls.values() if c['status'] == 'active']),
            'access_points': len(self.access_points),
            'monitored_points': len([p for p in self.access_points.values() if p['monitoring']]),
            'security_score': 0.0
        }
        
        # Calcular score de seguridad
        if assessment['total_controls'] > 0:
            control_effectiveness = sum(c['effectiveness'] for c in self.physical_controls.values()) / assessment['total_controls']
            monitoring_coverage = assessment['monitored_points'] / assessment['access_points'] if assessment['access_points'] > 0 else 0
            
            assessment['security_score'] = (control_effectiveness + monitoring_coverage) / 2
        
        return assessment
    
    def get_access_anomalies(self, point_id, time_window_hours=24):
        """Detectar anomalías de acceso"""
        if point_id not in self.access_points:
            return []
        
        access_log = self.access_points[point_id]['access_log']
        cutoff_time = datetime.now() - timedelta(hours=time_window_hours)
        
        recent_access = [record for record in access_log if record['timestamp'] >= cutoff_time]
        
        anomalies = []
        
        # Detectar accesos fuera de horario
        off_hours_access = [r for r in recent_access if r['timestamp'].hour < 6 or r['timestamp'].hour > 22]
        if off_hours_access:
            anomalies.append({
                'type': 'off_hours_access',
                'count': len(off_hours_access),
                'description': 'Accesos fuera de horario normal'
            })
        
        # Detectar múltiples intentos fallidos
        failed_attempts = [r for r in recent_access if not r['success']]
        if len(failed_attempts) > 3:
            anomalies.append({
                'type': 'multiple_failed_attempts',
                'count': len(failed_attempts),
                'description': 'Múltiples intentos de acceso fallidos'
            })
        
        return anomalies

# Ejemplo de uso
physical_layer = PhysicalSecurityLayer()

# Instalar controles físicos
physical_layer.install_physical_control('CTRL-001', {
    'type': 'Biometric Scanner',
    'location': 'Main Entrance',
    'function': 'Access Control'
})

physical_layer.install_physical_control('CTRL-002', {
    'type': 'Security Camera',
    'location': 'Data Center',
    'function': 'Surveillance'
})

# Crear punto de acceso
physical_layer.create_access_point('AP-001', {
    'name': 'Main Data Center Door',
    'location': 'Building A, Floor 1',
    'access_type': 'Card + Biometric',
    'controls': ['CTRL-001', 'CTRL-002'],
    'monitoring': True
})

# Evaluar seguridad física
assessment = physical_layer.assess_physical_security()
print(f"Evaluación de seguridad física: {assessment}")

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class NetworkSecurityLayer:
    def __init__(self):
        self.network_devices = {}
        self.security_zones = {}
        self.traffic_rules = {}
        self.intrusion_detection = {}
    
    def configure_firewall(self, firewall_id, config):
        """Configurar firewall"""
        self.network_devices[firewall_id] = {
            'device_id': firewall_id,
            'type': 'firewall',
            'model': config['model'],
            'rules': config.get('rules', []),
            'zones': config.get('zones', []),
            'status': 'active',
            'last_update': None,
            'threat_intelligence': config.get('threat_intelligence', True)
        }
    
    def create_security_zone(self, zone_id, zone_config):
        """Crear zona de seguridad"""
        self.security_zones[zone_id] = {
            'zone_id': zone_id,
            'name': zone_config['name'],
            'trust_level': zone_config['trust_level'],
            'subnets': zone_config.get('subnets', []),
            'allowed_protocols': zone_config.get('protocols', []),
            'allowed_ports': zone_config.get('ports', []),
            'isolation_level': zone_config.get('isolation_level', 'medium'),
            'monitoring': zone_config.get('monitoring', True)
        }
    
    def define_traffic_rule(self, rule_id, rule_config):
        """Definir regla de tráfico"""
        self.traffic_rules[rule_id] = {
            'rule_id': rule_id,
            'name': rule_config['name'],
            'source_zone': rule_config['source_zone'],
            'destination_zone': rule_config['destination_zone'],
            'protocol': rule_config.get('protocol', 'any'),
            'port': rule_config.get('port', 'any'),
            'action': rule_config['action'],  # allow, deny, log
            'priority': rule_config.get('priority', 100),
            'enabled': rule_config.get('enabled', True)
        }
    
    def monitor_network_traffic(self, source_zone, destination_zone, protocol, port):
        """Monitorear tráfico de red"""
        # Buscar regla aplicable
        applicable_rules = []
        
        for rule in self.traffic_rules.values():
            if not rule['enabled']:
                continue
            
            if (rule['source_zone'] == source_zone and 
                rule['destination_zone'] == destination_zone and
                (rule['protocol'] == protocol or rule['protocol'] == 'any') and
                (rule['port'] == port or rule['port'] == 'any')):
                applicable_rules.append(rule)
        
        # Ordenar por prioridad (menor número = mayor prioridad)
        applicable_rules.sort(key=lambda x: x['priority'])
        
        if applicable_rules:
            rule = applicable_rules[0]
            return {
                'action': rule['action'],
                'rule_id': rule['rule_id'],
                'rule_name': rule['name']
            }
        else:
            return {
                'action': 'deny',
                'rule_id': 'default',
                'rule_name': 'Default Deny'
            }
    
    def detect_intrusion(self, traffic_data):
        """Detectar intrusiones"""
        alerts = []
        
        # Detectar patrones sospechosos
        if traffic_data.get('packet_size') > 1500:  # Paquetes grandes
            alerts.append({
                'type': 'large_packet',
                'severity': 'medium',
                'description': 'Paquete de tamaño inusual detectado'
            })
        
        if traffic_data.get('connection_attempts') > 100:  # Muchos intentos de conexión
            alerts.append({
                'type': 'connection_flood',
                'severity': 'high',
                'description': 'Posible ataque de inundación de conexiones'
            })
        
        if traffic_data.get('port_scanning'):  # Escaneo de puertos
            alerts.append({
                'type': 'port_scan',
                'severity': 'high',
                'description': 'Escaneo de puertos detectado'
            })
        
        return alerts
    
    def get_network_security_status(self):
        """Obtener estado de seguridad de red"""
        status = {
            'total_devices': len(self.network_devices),
            'active_devices': len([d for d in self.network_devices.values() if d['status'] == 'active']),
            'security_zones': len(self.security_zones),
            'traffic_rules': len(self.traffic_rules),
            'enabled_rules': len([r for r in self.traffic_rules.values() if r['enabled']]),
            'security_score': 0.0
        }
        
        # Calcular score de seguridad
        if status['total_devices'] > 0 and status['traffic_rules'] > 0:
            device_ratio = status['active_devices'] / status['total_devices']
            rule_ratio = status['enabled_rules'] / status['traffic_rules']
            zone_coverage = status['security_zones'] / 5  # Asumiendo 5 zonas ideales
            
            status['security_score'] = (device_ratio + rule_ratio + zone_coverage) / 3
        
        return status

# Ejemplo de uso
network_layer = NetworkSecurityLayer()

# Configurar firewall
network_layer.configure_firewall('FW-001', {
    'model': 'Cisco ASA',
    'zones': ['internal', 'dmz', 'external'],
    'threat_intelligence': True
})

# Crear zonas de seguridad
network_layer.create_security_zone('internal', {
    'name': 'Internal Network',
    'trust_level': 'high',
    'subnets': ['10.0.0.0/8'],
    'protocols': ['TCP', 'UDP', 'ICMP'],
    'isolation_level': 'low'
})

network_layer.create_security_zone('dmz', {
    'name': 'DMZ',
    'trust_level': 'medium',
    'subnets': ['192.168.1.0/24'],
    'protocols': ['TCP'],
    'isolation_level': 'high'
})

# Definir reglas de tráfico
network_layer.define_traffic_rule('RULE-001', {
    'name': 'Internal to DMZ HTTP',
    'source_zone': 'internal',
    'destination_zone': 'dmz',
    'protocol': 'TCP',
    'port': '80',
    'action': 'allow',
    'priority': 10
})

# Monitorear tráfico
traffic_result = network_layer.monitor_network_traffic('internal', 'dmz', 'TCP', '80')
print(f"Resultado de monitoreo: {traffic_result}")

# Obtener estado de seguridad
security_status = network_layer.get_network_security_status()
print(f"Estado de seguridad de red: {security_status}")

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class ApplicationSecurityLayer:
    def __init__(self):
        self.applications = {}
        self.security_controls = {}
        self.vulnerability_scans = {}
        self.code_analysis = {}
    
    def register_application(self, app_id, app_config):
        """Registrar aplicación"""
        self.applications[app_id] = {
            'app_id': app_id,
            'name': app_config['name'],
            'type': app_config['type'],
            'version': app_config.get('version', '1.0'),
            'security_controls': app_config.get('security_controls', []),
            'vulnerability_status': 'unknown',
            'last_scan': None,
            'security_score': 0.0
        }
    
    def implement_security_control(self, control_id, control_config):
        """Implementar control de seguridad de aplicación"""
        self.security_controls[control_id] = {
            'control_id': control_id,
            'type': control_config['type'],
            'application_id': control_config['application_id'],
            'implementation': control_config['implementation'],
            'status': 'active',
            'effectiveness': control_config.get('effectiveness', 0.0),
            'last_test': None
        }
    
    def perform_vulnerability_scan(self, app_id, scan_type='automated'):
        """Realizar escaneo de vulnerabilidades"""
        if app_id not in self.applications:
            return None
        
        scan_id = f"SCAN-{app_id}-{datetime.now().strftime('%Y%m%d%H%M%S')}"
        
        # Simular escaneo de vulnerabilidades
        vulnerabilities = self.simulate_vulnerability_scan(app_id)
        
        self.vulnerability_scans[scan_id] = {
            'scan_id': scan_id,
            'app_id': app_id,
            'scan_type': scan_type,
            'timestamp': datetime.now(),
            'vulnerabilities': vulnerabilities,
            'total_vulnerabilities': len(vulnerabilities),
            'critical_count': len([v for v in vulnerabilities if v['severity'] == 'critical']),
            'high_count': len([v for v in vulnerabilities if v['severity'] == 'high']),
            'medium_count': len([v for v in vulnerabilities if v['severity'] == 'medium']),
            'low_count': len([v for v in vulnerabilities if v['severity'] == 'low'])
        }
        
        # Actualizar estado de la aplicación
        self.applications[app_id]['vulnerability_status'] = self.calculate_vulnerability_status(vulnerabilities)
        self.applications[app_id]['last_scan'] = datetime.now()
        
        return self.vulnerability_scans[scan_id]
    
    def simulate_vulnerability_scan(self, app_id):
        """Simular escaneo de vulnerabilidades"""
        # Simulación de vulnerabilidades comunes
        vulnerabilities = [
            {
                'id': f'VULN-{app_id}-001',
                'type': 'SQL Injection',
                'severity': 'high',
                'cvss_score': 8.5,
                'description': 'SQL injection vulnerability in login form',
                'location': '/login.php',
                'remediation': 'Use parameterized queries'
            },
            {
                'id': f'VULN-{app_id}-002',
                'type': 'Cross-Site Scripting (XSS)',
                'severity': 'medium',
                'cvss_score': 6.1,
                'description': 'Reflected XSS in search functionality',
                'location': '/search.php',
                'remediation': 'Implement input validation and output encoding'
            },
            {
                'id': f'VULN-{app_id}-003',
                'type': 'Insecure Direct Object Reference',
                'severity': 'medium',
                'cvss_score': 5.3,
                'description': 'Direct access to user files without authorization',
                'location': '/files.php',
                'remediation': 'Implement proper authorization checks'
            }
        ]
        
        return vulnerabilities
    
    def calculate_vulnerability_status(self, vulnerabilities):
        """Calcular estado de vulnerabilidades"""
        if not vulnerabilities:
            return 'clean'
        
        critical_count = len([v for v in vulnerabilities if v['severity'] == 'critical'])
        high_count = len([v for v in vulnerabilities if v['severity'] == 'high'])
        
        if critical_count > 0:
            return 'critical'
        elif high_count > 2:
            return 'high'
        elif high_count > 0 or len(vulnerabilities) > 5:
            return 'medium'
        else:
            return 'low'
    
    def perform_code_analysis(self, app_id, code_files):
        """Realizar análisis de código"""
        analysis_id = f"CODE-{app_id}-{datetime.now().strftime('%Y%m%d%H%M%S')}"
        
        # Simular análisis de código
        issues = self.simulate_code_analysis(code_files)
        
        self.code_analysis[analysis_id] = {
            'analysis_id': analysis_id,
            'app_id': app_id,
            'timestamp': datetime.now(),
            'files_analyzed': len(code_files),
            'issues': issues,
            'total_issues': len(issues),
            'security_issues': len([i for i in issues if i['type'] == 'security']),
            'quality_issues': len([i for i in issues if i['type'] == 'quality']),
            'performance_issues': len([i for i in issues if i['type'] == 'performance'])
        }
        
        return self.code_analysis[analysis_id]
    
    def simulate_code_analysis(self, code_files):
        """Simular análisis de código"""
        issues = []
        
        for file in code_files:
            if 'password' in file.lower():
                issues.append({
                    'file': file,
                    'line': 15,
                    'type': 'security',
                    'severity': 'high',
                    'description': 'Hardcoded password detected',
                    'rule': 'SEC001'
                })
            
            if 'sql' in file.lower():
                issues.append({
                    'file': file,
                    'line': 42,
                    'type': 'security',
                    'severity': 'medium',
                    'description': 'Potential SQL injection vulnerability',
                    'rule': 'SEC002'
                })
        
        return issues
    
    def get_application_security_summary(self, app_id):
        """Obtener resumen de seguridad de aplicación"""
        if app_id not in self.applications:
            return None
        
        app = self.applications[app_id]
        
        # Obtener escaneos recientes
        recent_scans = [scan for scan in self.vulnerability_scans.values() 
                       if scan['app_id'] == app_id and 
                       scan['timestamp'] >= datetime.now() - timedelta(days=30)]
        
        # Obtener análisis de código recientes
        recent_analyses = [analysis for analysis in self.code_analysis.values() 
                          if analysis['app_id'] == app_id and 
                          analysis['timestamp'] >= datetime.now() - timedelta(days=30)]
        
        summary = {
            'app_id': app_id,
            'name': app['name'],
            'vulnerability_status': app['vulnerability_status'],
            'total_vulnerabilities': sum(scan['total_vulnerabilities'] for scan in recent_scans),
            'critical_vulnerabilities': sum(scan['critical_count'] for scan in recent_scans),
            'security_issues': sum(analysis['security_issues'] for analysis in recent_analyses),
            'last_scan': app['last_scan'],
            'security_score': self.calculate_security_score(app, recent_scans, recent_analyses)
        }
        
        return summary
    
    def calculate_security_score(self, app, scans, analyses):
        """Calcular score de seguridad"""
        base_score = 100.0
        
        # Penalizar por vulnerabilidades
        for scan in scans:
            base_score -= scan['critical_count'] * 20
            base_score -= scan['high_count'] * 10
            base_score -= scan['medium_count'] * 5
            base_score -= scan['low_count'] * 1
        
        # Penalizar por problemas de código
        for analysis in analyses:
            base_score -= analysis['security_issues'] * 5
        
        return max(0.0, base_score)

# Ejemplo de uso
app_layer = ApplicationSecurityLayer()

# Registrar aplicación
app_layer.register_application('APP-001', {
    'name': 'Customer Portal',
    'type': 'Web Application',
    'version': '2.1',
    'security_controls': ['WAF', 'Input Validation', 'Authentication']
})

# Realizar escaneo de vulnerabilidades
scan_result = app_layer.perform_vulnerability_scan('APP-001')
print(f"Resultado del escaneo: {scan_result['total_vulnerabilities']} vulnerabilidades encontradas")

# Realizar análisis de código
code_analysis = app_layer.perform_code_analysis('APP-001', ['login.php', 'search.php', 'database.php'])
print(f"Análisis de código: {code_analysis['total_issues']} problemas encontrados")

# Obtener resumen de seguridad
security_summary = app_layer.get_application_security_summary('APP-001')
print(f"Resumen de seguridad: {security_summary}")

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class DefenseInDepthStrategy:
    def __init__(self):
        self.layers = {
            'policies': PolicyLayer(),
            'physical': PhysicalSecurityLayer(),
            'network': NetworkSecurityLayer(),
            'application': ApplicationSecurityLayer()
        }
        self.integration_points = {}
        self.coordination_mechanisms = {}
    
    def assess_overall_security(self):
        """Evaluar seguridad general"""
        layer_scores = {}
        
        for layer_name, layer in self.layers.items():
            if hasattr(layer, 'assess_policy_coverage'):
                layer_scores[layer_name] = layer.assess_policy_coverage()
            elif hasattr(layer, 'assess_physical_security'):
                layer_scores[layer_name] = layer.assess_physical_security()['security_score']
            elif hasattr(layer, 'get_network_security_status'):
                layer_scores[layer_name] = layer.get_network_security_status()['security_score']
            else:
                layer_scores[layer_name] = 0.0
        
        # Calcular score general
        overall_score = sum(layer_scores.values()) / len(layer_scores)
        
        return {
            'layer_scores': layer_scores,
            'overall_score': overall_score,
            'weakest_layer': min(layer_scores, key=layer_scores.get),
            'strongest_layer': max(layer_scores, key=layer_scores.get),
            'recommendations': self.get_improvement_recommendations(layer_scores)
        }
    
    def get_improvement_recommendations(self, layer_scores):
        """Obtener recomendaciones de mejora"""
        recommendations = []
        
        for layer, score in layer_scores.items():
            if score < 0.7:
                recommendations.append(f"Mejorar {layer} layer (score actual: {score:.2f})")
        
        if len(recommendations) == 0:
            recommendations.append("Mantener y monitorear todas las capas")
        
        return recommendations
    
    def coordinate_incident_response(self, incident_type, affected_layers):
        """Coordinar respuesta a incidentes entre capas"""
        response_actions = []
        
        for layer in affected_layers:
            if layer in self.layers:
                if layer == 'policies':
                    response_actions.append("Actualizar políticas relevantes")
                elif layer == 'physical':
                    response_actions.append("Reforzar controles físicos")
                elif layer == 'network':
                    response_actions.append("Aplicar reglas de firewall adicionales")
                elif layer == 'application':
                    response_actions.append("Implementar controles de aplicación adicionales")
        
        return {
            'incident_type': incident_type,
            'affected_layers': affected_layers,
            'response_actions': response_actions,
            'coordination_required': len(affected_layers) > 1
        }

# Ejemplo de uso
defense_strategy = DefenseInDepthStrategy()

# Evaluar seguridad general
security_assessment = defense_strategy.assess_overall_security()
print(f"Evaluación de seguridad: {security_assessment}")

# Coordinar respuesta a incidente
incident_response = defense_strategy.coordinate_incident_response(
    'data_breach', 
    ['network', 'application']
)
print(f"Respuesta a incidente: {incident_response}")