Continuous Security Improvement

Continuous Security Improvement

Security monitoring must evolve continuously to address new threats and improve effectiveness.

// Continuous improvement framework
class ContinuousSecurityImprovement {
    
    // Security posture assessment
    func assessSecurityPosture() -> SecurityPostureReport {
        let assessments = [
            assessMonitoringCoverage(),
            assessDetectionCapabilities(),
            assessResponseEffectiveness(),
            assessToolEffectiveness()
        ]
        
        return SecurityPostureReport(
            overallScore: calculateOverallScore(assessments),
            strengths: identifyStrengths(assessments),
            weaknesses: identifyWeaknesses(assessments),
            recommendations: generateImprovementPlan(assessments)
        )
    }
    
    // Purple team exercises
    class PurpleTeamCoordinator {
        
        func planExercise(scenario: AttackScenario) -> PurpleTeamExercise {
            return PurpleTeamExercise(
                scenario: scenario,
                redTeamObjectives: defineRedTeamObjectives(scenario),
                blueTeamObjectives: defineBlueTeamObjectives(scenario),
                successCriteria: defineSuccessCriteria(scenario),
                timeline: generateTimeline(scenario)
            )
        }
        
        func executeExercise(_ exercise: PurpleTeamExercise) async -> ExerciseResults {
            // Start monitoring enhancements
            enhanceMonitoring(for: exercise)
            
            // Execute red team activities
            let redTeamResults = await RedTeam.execute(exercise.redTeamObjectives)
            
            // Collect blue team observations
            let blueTeamResults = await BlueTeam.analyze(
                timeframe: exercise.timeline,
                expectedActivities: exercise.redTeamObjectives
            )
            
            // Analyze gaps
            let gaps = analyzeDetectionGaps(
                expected: redTeamResults,
                detected: blueTeamResults
            )
            
            return ExerciseResults(
                detectionRate: calculateDetectionRate(redTeamResults, blueTeamResults),
                responseTime: calculateAverageResponseTime(blueTeamResults),
                gaps: gaps,
                improvements: recommendImprovements(gaps)
            )
        }
    }
    
    // Monitoring optimization
    class MonitoringOptimizer {
        
        func optimizeMonitoring() {
            // Analyze current monitoring effectiveness
            let effectiveness = analyzeMonitoringEffectiveness()
            
            // Identify gaps
            let gaps = identifyMonitoringGaps()
            
            // Generate optimization recommendations
            let optimizations = generateOptimizations(
                effectiveness: effectiveness,
                gaps: gaps
            )
            
            // Implement high-value optimizations
            implementOptimizations(optimizations.filter { $0.roi > 2.0 })
        }
        
        private func analyzeMonitoringEffectiveness() -> MonitoringEffectiveness {
            return MonitoringEffectiveness(
                coverage: calculateCoverage(),
                accuracy: calculateAccuracy(),
                timeliness: calculateTimeliness(),
                cost: calculateMonitoringCost()
            )
        }
    }
}