Improved Mitigation of Cyber Threats in IIoT for Smart Cities: A New-Era Approach and Scheme

Cybersecurity in Industrial Internet of Things (IIoT) has become critical as smart cities are becoming increasingly linked to industrial control systems (ICSs) used in critical infrastructure. Consequently, data-driven security systems for analyzing massive amounts of data generated by smart cities...

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Main Authors: Semi Park, Kyungho Lee
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/6/1976
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author Semi Park
Kyungho Lee
author_facet Semi Park
Kyungho Lee
author_sort Semi Park
collection DOAJ
description Cybersecurity in Industrial Internet of Things (IIoT) has become critical as smart cities are becoming increasingly linked to industrial control systems (ICSs) used in critical infrastructure. Consequently, data-driven security systems for analyzing massive amounts of data generated by smart cities have become essential. A representative method for analyzing large-scale data is the game bot detection approach used in massively multiplayer online role-playing games. We reviewed the literature on bot detection methods to extend the anomaly detection approaches used in bot detection schemes to IIoT fields. Finally, we proposed a process wherein the data envelopment analysis (DEA) model was applied to identify features for efficiently detecting anomalous behavior in smart cities. Experimental results using random forest show that our extracted features based on a game bot can achieve an average F1-score of 0.99903 using 10-fold validation. We confirmed the applicability of the analyzed game-industry methodology to other fields and trained a random forest on the high-efficiency features identified by applying a DEA, obtaining an F1-score of 0.997 using the validation set approach. In this study, an anomaly detection method for analyzing massive smart city data based on a game industry methodology was presented and applied to the ICS dataset.
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spelling doaj.art-9d8804be0b744b77a96b9a905056cd572023-11-21T10:03:53ZengMDPI AGSensors1424-82202021-03-01216197610.3390/s21061976Improved Mitigation of Cyber Threats in IIoT for Smart Cities: A New-Era Approach and SchemeSemi Park0Kyungho Lee1School of Cybersecurity, Korea University, Seoul 02841, KoreaSchool of Cybersecurity, Korea University, Seoul 02841, KoreaCybersecurity in Industrial Internet of Things (IIoT) has become critical as smart cities are becoming increasingly linked to industrial control systems (ICSs) used in critical infrastructure. Consequently, data-driven security systems for analyzing massive amounts of data generated by smart cities have become essential. A representative method for analyzing large-scale data is the game bot detection approach used in massively multiplayer online role-playing games. We reviewed the literature on bot detection methods to extend the anomaly detection approaches used in bot detection schemes to IIoT fields. Finally, we proposed a process wherein the data envelopment analysis (DEA) model was applied to identify features for efficiently detecting anomalous behavior in smart cities. Experimental results using random forest show that our extracted features based on a game bot can achieve an average F1-score of 0.99903 using 10-fold validation. We confirmed the applicability of the analyzed game-industry methodology to other fields and trained a random forest on the high-efficiency features identified by applying a DEA, obtaining an F1-score of 0.997 using the validation set approach. In this study, an anomaly detection method for analyzing massive smart city data based on a game industry methodology was presented and applied to the ICS dataset.https://www.mdpi.com/1424-8220/21/6/1976anomaly detectiondata envelopment analysissmart cityindustrial control systemscybersecurity
spellingShingle Semi Park
Kyungho Lee
Improved Mitigation of Cyber Threats in IIoT for Smart Cities: A New-Era Approach and Scheme
Sensors
anomaly detection
data envelopment analysis
smart city
industrial control systems
cybersecurity
title Improved Mitigation of Cyber Threats in IIoT for Smart Cities: A New-Era Approach and Scheme
title_full Improved Mitigation of Cyber Threats in IIoT for Smart Cities: A New-Era Approach and Scheme
title_fullStr Improved Mitigation of Cyber Threats in IIoT for Smart Cities: A New-Era Approach and Scheme
title_full_unstemmed Improved Mitigation of Cyber Threats in IIoT for Smart Cities: A New-Era Approach and Scheme
title_short Improved Mitigation of Cyber Threats in IIoT for Smart Cities: A New-Era Approach and Scheme
title_sort improved mitigation of cyber threats in iiot for smart cities a new era approach and scheme
topic anomaly detection
data envelopment analysis
smart city
industrial control systems
cybersecurity
url https://www.mdpi.com/1424-8220/21/6/1976
work_keys_str_mv AT semipark improvedmitigationofcyberthreatsiniiotforsmartcitiesaneweraapproachandscheme
AT kyungholee improvedmitigationofcyberthreatsiniiotforsmartcitiesaneweraapproachandscheme