Incident Response Automation

Incident Response Automation

Automated incident response reduces response time and ensures consistent handling of security events.

// Automated incident response system
class AutomatedIncidentResponse {
    
    // Response playbooks
    class ResponsePlaybook {
        let id: String
        let name: String
        let triggers: [TriggerCondition]
        let actions: [ResponseAction]
        let escalationPath: EscalationPath
        
        func execute(incident: SecurityIncident) async throws {
            // Validate playbook applicability
            guard triggers.allSatisfy({ $0.matches(incident) }) else {
                throw PlaybookError.notApplicable
            }
            
            // Execute actions in sequence
            for action in actions {
                do {
                    try await action.execute(context: incident)
                    
                    // Log successful action
                    AuditLogger.log(
                        PlaybookAction(
                            playbookId: id,
                            actionId: action.id,
                            status: .success,
                            timestamp: Date()
                        )
                    )
                } catch {
                    // Handle action failure
                    handleActionFailure(action: action, error: error, incident: incident)
                    
                    if action.isRequired {
                        throw PlaybookError.requiredActionFailed(action, error)
                    }
                }
            }
            
            // Check if escalation needed
            if shouldEscalate(incident) {
                await escalate(incident)
            }
        }
    }
    
    // Common response actions
    enum ResponseAction {
        case lockAccount(userId: String)
        case revokeTokens(userId: String)
        case blockIP(address: String)
        case quarantineDevice(deviceId: String)
        case notifyUser(userId: String, message: String)
        case createTicket(priority: TicketPriority)
        case executeScript(script: String, parameters: [String: Any])
        case callWebhook(url: URL, payload: Data)
        
        func execute(context: SecurityIncident) async throws {
            switch self {
            case .lockAccount(let userId):
                try await AccountService.lockAccount(userId)
                
            case .revokeTokens(let userId):
                try await TokenService.revokeAllTokens(for: userId)
                
            case .blockIP(let address):
                try await FirewallService.blockIP(address)
                
            case .quarantineDevice(let deviceId):
                try await DeviceManagement.quarantine(deviceId)
                
            case .notifyUser(let userId, let message):
                try await NotificationService.send(
                    to: userId,
                    message: message,
                    priority: .high
                )
                
            case .createTicket(let priority):
                let ticket = IncidentTicket(
                    incident: context,
                    priority: priority
                )
                try await TicketingSystem.create(ticket)
                
            case .executeScript(let script, let parameters):
                try await ScriptExecutor.run(script, parameters: parameters)
                
            case .callWebhook(let url, let payload):
                try await WebhookCaller.post(url: url, payload: payload)
            }
        }
    }
    
    // Intelligent response orchestration
    class ResponseOrchestrator {
        private let playbooks: [ResponsePlaybook]
        private let aiEngine = SecurityAIEngine()
        
        func handleIncident(_ incident: SecurityIncident) async {
            // Find applicable playbooks
            let applicablePlaybooks = playbooks.filter { playbook in
                playbook.triggers.allSatisfy { $0.matches(incident) }
            }
            
            if applicablePlaybooks.isEmpty {
                // No exact match - use AI for response
                await handleWithAI(incident)
            } else if applicablePlaybooks.count == 1 {
                // Single playbook match
                try? await applicablePlaybooks[0].execute(incident)
            } else {
                // Multiple matches - select best
                let bestPlaybook = await selectBestPlaybook(
                    applicablePlaybooks, 
                    for: incident
                )
                try? await bestPlaybook.execute(incident)
            }
        }
        
        private func handleWithAI(_ incident: SecurityIncident) async {
            // Get AI-recommended actions
            let recommendations = await aiEngine.recommendActions(for: incident)
            
            // Execute high-confidence actions automatically
            for recommendation in recommendations where recommendation.confidence > 0.9 {
                if let action = convertToAction(recommendation) {
                    try? await action.execute(context: incident)
                }
            }
            
            // Create ticket for manual review with AI recommendations
            let ticket = IncidentTicket(
                incident: incident,
                aiRecommendations: recommendations,
                requiresManualReview: true
            )
            
            try? await TicketingSystem.create(ticket)
        }
    }
}