{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,10]],"date-time":"2026-01-10T08:18:27Z","timestamp":1768033107248,"version":"3.49.0"},"reference-count":63,"publisher":"MDPI AG","issue":"23","license":[{"start":{"date-parts":[[2021,12,4]],"date-time":"2021-12-04T00:00:00Z","timestamp":1638576000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Czech Ministry of Industry and Trade","award":["FV40366"],"award-info":[{"award-number":["FV40366"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In recent years, the Industry 4.0 paradigm has accelerated the digitalization process of the industry, and it slowly diminishes the line between information technologies (IT) and operational technologies (OT). Among the advantages, this brings up the convergence issue between IT and OT, especially in the cybersecurity-related topics, including new attack vectors, threats, security imperfections, and much more. This cause raised new topics for methods focused on protecting the industrial infrastructure, including monitoring and detection systems, which should help overcome these new challenges. However, those methods require high quality and a large number of datasets with different conditions to adapt to the specific systems effectively. Unfortunately, revealing field factory setups and infrastructure would be costly and challenging due to the privacy and sensitivity causes. From the lack of data emerges the new topic of industrial testbeds, including sub-real physical laboratory environments, virtual factories, honeynets, honeypots, and other areas, which helps to deliver sufficient datasets for mentioned research and development. This paper summarizes related works in the area of industrial testbeds. Moreover, it describes best practices and lessons learned for assembling physical, simulated, virtual, and hybrid testbeds. Additionally, a comparison of the essential parameters of those testbeds is presented. Finally, the findings and provided information reveal research and development challenges, which must be surpassed.<\/jats:p>","DOI":"10.3390\/s21238119","type":"journal-article","created":{"date-parts":[[2021,12,6]],"date-time":"2021-12-06T03:10:38Z","timestamp":1638760238000},"page":"8119","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Application Perspective on Cybersecurity Testbed for Industrial Control Systems"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8347-4847","authenticated-orcid":false,"given":"Ondrej","family":"Pospisil","sequence":"first","affiliation":[{"name":"Department of Telecommunications, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 12, 61600 Brno, Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7699-1531","authenticated-orcid":false,"given":"Petr","family":"Blazek","sequence":"additional","affiliation":[{"name":"Department of Telecommunications, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 12, 61600 Brno, Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5972-9037","authenticated-orcid":false,"given":"Karel","family":"Kuchar","sequence":"additional","affiliation":[{"name":"Department of Telecommunications, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 12, 61600 Brno, Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8319-0633","authenticated-orcid":false,"given":"Radek","family":"Fujdiak","sequence":"additional","affiliation":[{"name":"Department of Telecommunications, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 12, 61600 Brno, Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5023-7757","authenticated-orcid":false,"given":"Jiri","family":"Misurec","sequence":"additional","affiliation":[{"name":"Department of Telecommunications, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 12, 61600 Brno, Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,12,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Pech, M., Vrchota, J., and Bedn\u00e1\u0159, J. (2021). Predictive Maintenance and Intelligent Sensors in Smart Factory. Sensors, 21.","DOI":"10.3390\/s21041470"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Ioana, A., Burlacu, C., and Korodi, A. (2021). Approaching OPC UA Publish\u2013Subscribe in the Context of UDP-Based Multi-Channel Communication and Image Transmission. Sensors, 21.","DOI":"10.3390\/s21041296"},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Elsisi, M., Tran, M.Q., Mahmoud, K., Lehtonen, M., and Darwish, M.M. (2021). Deep Learning-Based Industry 4.0 and Internet of Things towards Effective Energy Management for Smart Buildings. Sensors, 21.","DOI":"10.3390\/s21041038"},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Khalid, H., Hashim, S.J., Ahmad, S.M.S., Hashim, F., and Chaudhary, M.A. (2021). SELAMAT: A New Secure and Lightweight Multi-Factor Authentication Scheme for Cross-Platform Industrial IoT Systems. Sensors, 21.","DOI":"10.3390\/s21041428"},{"key":"ref_5","unstructured":"Murray, G., Johnstone, M.N., and Valli, C. (2017, January 5\u20136). The convergence of IT and OT in critical infrastructure. Proceedings of the Australian Information Security Management Conference, Perth, Australia."},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Conklin, W.A. (2016, January 5\u20138). IT vs. OT security: A time to consider a change in CIA to include resilienc. Proceedings of the 2016 49th Hawaii International Conference on System Sciences (HICSS), Koloa, HI, USA.","DOI":"10.1109\/HICSS.2016.331"},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Kamal, S., Al Mubarak, S., Scodova, B., Naik, P., Flichy, P., and Coffin, G. (2016, January 6\u20138). IT and OT convergence-opportunities and challenges. Proceedings of the SPE Intelligent Energy International Conference and Exhibition, Society of Petroleum Engineers, Scotland, UK.","DOI":"10.2118\/181087-MS"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1109\/MIAS.2019.2943630","article-title":"A guide to securing industrial control networks: Integrating IT and OT systems","volume":"26","author":"Paes","year":"2019","journal-title":"IEEE Ind. Appl. Mag."},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Garimella, P.K. (2018, January 25\u201327). IT-OT integration challenges in utilities. Proceedings of the 2018 IEEE 3rd International Conference on Computing, Communication and Security (ICCCS), Kathmandu, Nepal.","DOI":"10.1109\/CCCS.2018.8586807"},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Sari, A., Lekidis, A., and Butun, I. (2020). Industrial networks and IIoT: Now and future trends. Industrial IoT, Springer.","DOI":"10.1007\/978-3-030-42500-5_1"},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Butun, I., and Sari, A. (2021). Early Detection and Recovery Measures for Smart Grid Cyber-Resilience. Decision Support Systems and Industrial IoT in Smart Grid, Factories, and Cities, IGI Global.","DOI":"10.4018\/978-1-7998-7468-3"},{"key":"ref_12","unstructured":"Menze, T. (2021, April 18). The State of Industrial Cybersecurity, 2020. Available online: https:\/\/ics.kaspersky.com\/the-state-of-industrial-cybersecurity-2020\/."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"106946","DOI":"10.1016\/j.comnet.2019.106946","article-title":"Cybersecurity in industrial control systems: Issues, technologies, and challenges","volume":"165","author":"Asghar","year":"2019","journal-title":"Comput. Netw."},{"key":"ref_14","unstructured":"Menze, T. (2021, April 18). The State of Industrial Cybersecurity, 2019. Available online: https:\/\/cuadernosdeseguridad.com\/wp-content\/uploads\/2019\/09\/2019_Kaspersky_ARC_ICS_report.pdf."},{"key":"ref_15","unstructured":"Wolfgang Schwab, M.P. (2021, April 18). The State of Industrial Cybersecurity, 2018. Available online: https:\/\/ics.kaspersky.com\/the-state-of-industrial-cybersecurity-2018\/."},{"key":"ref_16","first-page":"62","article-title":"German steel mill cyber attack","volume":"30","author":"Lee","year":"2014","journal-title":"Ind. Control Syst."},{"key":"ref_17","unstructured":"Zetter, K. (2016). Everything we know about Ukraine\u2019s power plant hack. Wired, Available online: https:\/\/www.wired.com\/2016\/01\/everything-we-know-about-ukraines-power-plant-hack\/."},{"key":"ref_18","first-page":"29","article-title":"Analysis of the cyber attack on the Ukrainian power grid","volume":"388","author":"Case","year":"2016","journal-title":"Electr. Inf. Shar. Anal. Cent. (E-ISAC)"},{"key":"ref_19","doi-asserted-by":"crossref","unstructured":"Mokhtari, S., Abbaspour, A., Yen, K.K., and Sargolzaei, A. (2021). A Machine Learning Approach for Anomaly Detection in Industrial Control Systems Based on Measurement Data. Electronics, 10.","DOI":"10.3390\/electronics10040407"},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Jiang, D., and Zhao, J. (2019, January 26\u201327). Machine Learning in Industrial Control System Security: A Survey. Proceedings of the Chinese Intelligent Systems Conference, Haikou, China.","DOI":"10.1007\/978-981-32-9698-5_35"},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Ahmed, C.M., MR, G.R., and Mathur, A.P. (2020, January 6). Challenges in machine learning based approaches for real-time anomaly detection in industrial control systems. Proceedings of the 6th ACM on Cyber-Physical System Security Workshop, Taipei, Taiwan.","DOI":"10.1145\/3384941.3409588"},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Perales G\u00f3mez, \u00c1.L., Fern\u00e1ndez Maim\u00f3, L., Huertas Celdr\u00e1n, A., and Garc\u00eda Clemente, F.J. (2020). MADICS: A Methodology for Anomaly Detection in Industrial Control Systems. Symmetry, 12.","DOI":"10.3390\/sym12101583"},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Butun, I., Almgren, M., Gulisano, V., and Papatriantafilou, M. (2020). Intrusion Detection in Industrial Networks via Data Streaming. Industrial IoT, Springer.","DOI":"10.1007\/978-3-030-42500-5_6"},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Holm, H., Karresand, M., Vidstr\u00f6m, A., and Westring, E. (2015, January 19\u201321). A survey of industrial control system testbeds. Proceedings of the Nordic Conference on Secure IT Systems, Stockholm, Sweden.","DOI":"10.1007\/978-3-319-26502-5_2"},{"key":"ref_25","first-page":"042030","article-title":"A survey of industrial control system testbeds","volume":"569","author":"Geng","year":"2019","journal-title":"Nord. Conf. Secur. IT Syst."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"446","DOI":"10.1109\/COMST.2016.2627399","article-title":"A survey on smart grid cyber-physical system testbeds","volume":"19","author":"Cintuglu","year":"2016","journal-title":"IEEE Commun. Surv. Tutor."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"1","DOI":"10.17485\/ijst\/2017\/v10i26\/116775","article-title":"A survey of scada testbed implementation approaches","volume":"10","author":"Qassim","year":"2017","journal-title":"Indian J. Sci. Technol."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"71","DOI":"10.1080\/23742917.2020.1843822","article-title":"Design Considerations for Building Credible Security Testbeds: Perspectives from Industrial Control System Use Cases","volume":"5","author":"Ani","year":"2020","journal-title":"J. Cyber Secur. Technol."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"101677","DOI":"10.1016\/j.cose.2019.101677","article-title":"Cybersecurity for industrial control systems: A survey","volume":"89","author":"Bhamare","year":"2020","journal-title":"Comput. Secur."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"88","DOI":"10.1016\/j.ijcip.2011.06.005","article-title":"A control system testbed to validate critical infrastructure protection concepts","volume":"4","author":"Morris","year":"2011","journal-title":"Int. J. Crit. Infrastruct. Prot."},{"key":"ref_31","doi-asserted-by":"crossref","unstructured":"Butts, J., and Shenoi, S. (2011). Analyzing Cyber-Physical Attacks on Networked Industrial Control Systems. Critical Infrastructure Protection V, Springer.","DOI":"10.1007\/978-3-642-24864-1"},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"Urias, V., Van Leeuwen, B., and Richardson, B. (November, January 29). Supervisory Command and Data Acquisition (SCADA) system cyber security analysis using a live, virtual, and constructive (LVC) testbed. Proceedings of the MILCOM 2012\u20142012 IEEE Military Communications Conference, Orlando, FL, USA.","DOI":"10.1109\/MILCOM.2012.6415818"},{"key":"ref_33","doi-asserted-by":"crossref","unstructured":"Foo, E., Branagan, M., and Morris, T. (2013, January 7\u201310). A Proposed Australian Industrial Control System Security Curriculum. Proceedings of the 2013 46th Hawaii International Conference on System Sciences, Maui, HI, USA.","DOI":"10.1109\/HICSS.2013.55"},{"key":"ref_34","doi-asserted-by":"crossref","unstructured":"Almalawi, A., Tari, Z., Khalil, I., and Fahad, A. (2013, January 21\u201324). SCADAVT-A framework for SCADA security testbed based on virtualization technology. Proceedings of the 38th Annual IEEE Conference on Local Computer Networks, Sydney, Australia.","DOI":"10.1109\/LCN.2013.6761301"},{"key":"ref_35","doi-asserted-by":"crossref","unstructured":"Gao, H., Peng, Y., Jia, K., Dai, Z., and Wang, T. (2013, January 16\u201318). The Design of ICS Testbed Based on Emulation, Physical, and Simulation (EPS-ICS Testbed). Proceedings of the 2013 Ninth International Conference on Intelligent Information Hiding and Multimedia Signal Processing, Beijing, China.","DOI":"10.1109\/IIH-MSP.2013.111"},{"key":"ref_36","doi-asserted-by":"crossref","unstructured":"Sayegh, N., Chehab, A., Elhajj, I.H., and Kayssi, A. (2013, January 19\u201321). Internal security attacks on SCADA systems. Proceedings of the 2013 Third International Conference on Communications and Information Technology (ICCIT), Beirut, Lebanon.","DOI":"10.1109\/ICCITechnology.2013.6579516"},{"key":"ref_37","unstructured":"Candell, R., Stouffer, K., and Anand, D. (2014, January 6\u20139). A cybersecurity testbed for industrial control systems. Proceedings of the 2014 Process Control and Safety Symposium, Houston, TX, USA."},{"key":"ref_38","doi-asserted-by":"crossref","unstructured":"Haney, M., and Papa, M. (2014, January 8\u201310). A Framework for the Design and Deployment of a SCADA Honeynet. Proceedings of the CISR \u201914: Proceedings of the 9th Annual Cyber and Information Security Research Conference, Oak Ridge, TN, USA.","DOI":"10.1145\/2602087.2602110"},{"key":"ref_39","doi-asserted-by":"crossref","unstructured":"Ahmed, I., Roussev, V., Johnson, W., Senthivel, S., and Sudhakaran, S. (2016, January 28). A SCADA System Testbed for Cybersecurity and Forensic Research and Pedagogy. Proceedings of the ICSS \u201916: Proceedings of the 2nd Annual Industrial Control System Security Workshop, Vienna, Austria.","DOI":"10.1145\/3018981.3018984"},{"key":"ref_40","doi-asserted-by":"crossref","unstructured":"Alves, T., Das, R., and Morris, T. (2016, January 6). Virtualization of Industrial Control System Testbeds for Cybersecurity. Proceedings of the 2nd Annual Industrial Control System Security Workshop, Los Angeles, CA, USA.","DOI":"10.1145\/3018981.3018988"},{"key":"ref_41","doi-asserted-by":"crossref","unstructured":"Ghaleb, A., Zhioua, S., and Almulhem, A. (2016, January 12\u201314). SCADA-SST: A SCADA security testbed. Proceedings of the 2016 World Congress on Industrial Control Systems Security (WCICSS), London, UK.","DOI":"10.1109\/WCICSS.2016.7882610"},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"54","DOI":"10.3103\/S0146411616010090","article-title":"A SCADA testbed for investigating cyber security vulnerabilities in critical infrastructures","volume":"50","author":"Tesfahun","year":"2016","journal-title":"Autom. Control Comput. Sci."},{"key":"ref_43","first-page":"75","article-title":"Attacking Fieldbus Communications in ICS: Applications to the SWaT Testbed","volume":"14","author":"David","year":"2016","journal-title":"Cryptol. Inf. Secur. Ser."},{"key":"ref_44","doi-asserted-by":"crossref","unstructured":"Miciolino, E.E., Bernieri, G., Pascucci, F., and Setola, R. (2015, January 24\u201325). Communications network analysis in a SCADA system testbed under cyber-attacks. Proceedings of the 2015 23rd Telecommunications Forum Telfor (TELFOR), Belgrade, Serbia.","DOI":"10.1109\/TELFOR.2015.7377479"},{"key":"ref_45","unstructured":"Soley, R.M. (2021, May 10). First European Testbed for the Industrial Internet Consortium. Available online: https:\/\/blog.bosch-si.com\/industry40\/first-european-testbed-for-the-industrial-internet-consortium\/."},{"key":"ref_46","doi-asserted-by":"crossref","unstructured":"Mathur, A.P., and Tippenhauer, N.O. (2016, January 11). SWaT: A water treatment testbed for research and training on ICS security. Proceedings of the 2016 International Workshop on Cyber-physical Systems for Smart Water Networks (CySWater), Vienna, Austria.","DOI":"10.1109\/CySWater.2016.7469060"},{"key":"ref_47","doi-asserted-by":"crossref","unstructured":"Teixeira, M.A., Salman, T., Zolanvari, M., Jain, R., Meskin, N., and Samaka, M. (2018). SCADA System Testbed for Cybersecurity Research Using Machine Learning Approach. Future Internet, 10.","DOI":"10.3390\/fi10080076"},{"key":"ref_48","doi-asserted-by":"crossref","unstructured":"Maynard, P., McLaughlin, K., and Sezer, S. (2018, January 29\u201330). An Open Framework for Deploying Experimental SCADA Testbed Networks. Proceedings of the 5th International Symposium for ICS & SCADA Cyber Security Research 2018, Hamburg, Germany.","DOI":"10.14236\/ewic\/ICS2018.11"},{"key":"ref_49","doi-asserted-by":"crossref","unstructured":"Xie, Y., Wang, W., Wang, F., and Chang, R. (2018, January 18\u201319). VTET: A Virtual Industrial Control System Testbed for Cyber Security Research. Proceedings of the 2018 Third International Conference on Security of Smart Cities, Industrial Control System and Communications (SSIC), Shanghai, China.","DOI":"10.1109\/SSIC.2018.8556732"},{"key":"ref_50","doi-asserted-by":"crossref","unstructured":"Sauer, F., Niedermaier, M., Kie\u00dfling, S., and Merli, D. (2019, January 10\u201312). LICSTER \u2013 A Low-cost ICS Security Testbed for Education and Research. Proceedings of the 6th International Symposium for ICS & SCADA Cyber Security Research 2019, Athens, Greece.","DOI":"10.14236\/ewic\/icscsr19.1"},{"key":"ref_51","doi-asserted-by":"crossref","unstructured":"Tao, Y., Xu, W., Li, H., and Ji, S. (2019, January 22\u201326). Experience and Lessons in Building an ICS Security Testbed. Proceedings of the 2019 1st International Conference on Industrial Artificial Intelligence (IAI), Shenyang, China.","DOI":"10.1109\/ICIAI.2019.8850804"},{"key":"ref_52","unstructured":"Niedermaier, M., von Bodisco, A., and Merli, D. (2019). CoRT: A Communication Robustness Testbed for Industrial Control System Components. arXiv."},{"key":"ref_53","doi-asserted-by":"crossref","unstructured":"Matsuda, W., Fujimoto, M., Aoyama, T., and Mitsunaga, T. (2019, January 19\u201321). Cyber Security Risk Assessment on Industry 4.0 using ICS testbed with AI and Cloud. Proceedings of the 2019 IEEE Conference on Application, Information and Network Security (AINS), Penang, Malaysia.","DOI":"10.1109\/AINS47559.2019.8968698"},{"key":"ref_54","doi-asserted-by":"crossref","unstructured":"Krishnan, S., and Wei, M. (2019, January 10\u201312). SCADA Testbed for Vulnerability Assessments, Penetration Testing and Incident Forensics. Proceedings of the 2019 7th International Symposium on Digital Forensics and Security (ISDFS), Barcelos, Portugal.","DOI":"10.1109\/ISDFS.2019.8757543"},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"51","DOI":"10.1016\/j.cose.2019.04.017","article-title":"A fog computing based approach to DDoS mitigation in IIoT systems","volume":"85","author":"Zhou","year":"2019","journal-title":"Comput. Secur."},{"key":"ref_56","doi-asserted-by":"crossref","unstructured":"Gardiner, J., Craggs, B., Green, B., and Rashid, A. (2019, January 8). Oops I Did It Again: Further Adventures in the Land of ICS Security Testbeds. Proceedings of the ACM Workshop on Cyber-Physical Systems Security & Privacy, Auckland, New Zealand.","DOI":"10.1145\/3338499.3357355"},{"key":"ref_57","doi-asserted-by":"crossref","unstructured":"Gillen, R.E., Anderson, L.A., Craig, C., Johnson, J., Columbia, A., Anderson, R., Craig, A., and Scott, S.L. (2020\u20133, January 31). Design and Implementation of Full-Scale Industrial Control System Test Bed for Assessing Cyber-Security Defenses. Proceedings of the 2020 IEEE 21st International Symposium on \u201cA World of Wireless, Mobile and Multimedia Networks\u201d (WoWMoM), Cork, Ireland.","DOI":"10.1109\/WoWMoM49955.2020.00064"},{"key":"ref_58","doi-asserted-by":"crossref","unstructured":"Khan, M., Rehman, O., Rahman, I.M.H., and Ali, S. (2020, January 9\u201310). Lightweight Testbed for Cybersecurity Experiments in SCADA-based Systems. Proceedings of the 2020 International Conference on Computing and Information Technology (ICCIT-1441), Tabuk, Saudi Arabia.","DOI":"10.1109\/ICCIT-144147971.2020.9213791"},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"149","DOI":"10.1007\/s10015-020-00635-1","article-title":"OpenPLC based control system testbed for PLC whitelisting system","volume":"26","author":"Fujita","year":"2020","journal-title":"Artif. Life Robot."},{"key":"ref_60","doi-asserted-by":"crossref","unstructured":"\u010celeda, P., Vykopal, J., \u0160v\u00e1bensk\u00fd, V., and Slav\u00ed\u010dek, K. (2020, January 11\u201314). KYPO4INDUSTRY: A Testbed for Teaching Cybersecurity of Industrial Control Systems. Proceedings of the 51st ACM Technical Symposium on Computer Science Education, Portland, OR, USA.","DOI":"10.1145\/3328778.3366908"},{"key":"ref_61","unstructured":"(2021, June 18). Continued Growth for Industrial Networks Despite Pandemic. Available online: https:\/\/www.hms-networks.com\/news-and-insights\/news-from-hms\/2021\/03\/31\/continued-growth-for-industrial-networks-despite-pandemic."},{"key":"ref_62","doi-asserted-by":"crossref","first-page":"38","DOI":"10.1016\/j.ijcip.2014.12.005","article-title":"Are industrial control systems ready for the cloud?","volume":"9","author":"Piggin","year":"2015","journal-title":"Int. J. Crit. Infrastruct. Prot."},{"key":"ref_63","doi-asserted-by":"crossref","unstructured":"Kulik, T., Tran-J\u00f8rgensen, P.W., and Boudjadar, J. (2018, January 8\u20139). Formal security analysis of cloud-connected industrial control systems. Proceedings of the International Conference on Security for Information Technology and Communications, Bucharest, Romania.","DOI":"10.1007\/978-3-030-12942-2_7"}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/23\/8119\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T07:39:45Z","timestamp":1760168385000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/23\/8119"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,12,4]]},"references-count":63,"journal-issue":{"issue":"23","published-online":{"date-parts":[[2021,12]]}},"alternative-id":["s21238119"],"URL":"https:\/\/doi.org\/10.3390\/s21238119","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,12,4]]}}}