Probabilistic safety assessment-based importance analysis of cyber-attacks on nuclear power plants
With the application of digital technology to safety-critical infrastructures, cyber-attacks have emerged as one of the new dangerous threats. In safety-critical infrastructures such as a nuclear power plant (NPP), a cyber-attack could have serious consequences by initiating dangerous events or rend...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-02-01
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| Series: | Nuclear Engineering and Technology |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573318302833 |
| _version_ | 1818491376969449472 |
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| author | Jong Woo Park Seung Jun Lee |
| author_facet | Jong Woo Park Seung Jun Lee |
| author_sort | Jong Woo Park |
| collection | DOAJ |
| description | With the application of digital technology to safety-critical infrastructures, cyber-attacks have emerged as one of the new dangerous threats. In safety-critical infrastructures such as a nuclear power plant (NPP), a cyber-attack could have serious consequences by initiating dangerous events or rendering important safety systems unavailable. Since a cyber-attack is conducted intentionally, numerous possible cases should be considered for developing a cyber security system, such as the attack paths, methods, and potential target systems. Therefore, prior to developing a risk-informed cyber security strategy, the importance of cyber-attacks and significant critical digital assets (CDAs) should be analyzed. In this work, an importance analysis method for cyber-attacks on an NPP was proposed using the probabilistic safety assessment (PSA) method. To develop an importance analysis framework for cyber-attacks, possible cyber-attacks were identified with failure modes, and a PSA model for cyber-attacks was developed. For case studies, the quantitative evaluations of cyber-attack scenarios were performed using the proposed method. By using quantitative importance of cyber-attacks and identifying significant CDAs that must be defended against cyber-attacks, it is possible to develop an efficient and reliable defense strategy against cyber-attacks on NPPs. Keywords: Probabilistic safety assessment, Cyber security, Cyber-attacks, Nuclear power plant, Critical digital asset |
| first_indexed | 2024-12-10T17:30:01Z |
| format | Article |
| id | doaj.art-c160a23f20ec4f3b905f39eb40ea7ec4 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-12-10T17:30:01Z |
| publishDate | 2019-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-c160a23f20ec4f3b905f39eb40ea7ec42022-12-22T01:39:42ZengElsevierNuclear Engineering and Technology1738-57332019-02-01511138145Probabilistic safety assessment-based importance analysis of cyber-attacks on nuclear power plantsJong Woo Park0Seung Jun Lee1Department of Nuclear Engineering, UNIST, 50, UNIST-gil, Ulsan, 44919, Republic of KoreaCorresponding author.; Department of Nuclear Engineering, UNIST, 50, UNIST-gil, Ulsan, 44919, Republic of KoreaWith the application of digital technology to safety-critical infrastructures, cyber-attacks have emerged as one of the new dangerous threats. In safety-critical infrastructures such as a nuclear power plant (NPP), a cyber-attack could have serious consequences by initiating dangerous events or rendering important safety systems unavailable. Since a cyber-attack is conducted intentionally, numerous possible cases should be considered for developing a cyber security system, such as the attack paths, methods, and potential target systems. Therefore, prior to developing a risk-informed cyber security strategy, the importance of cyber-attacks and significant critical digital assets (CDAs) should be analyzed. In this work, an importance analysis method for cyber-attacks on an NPP was proposed using the probabilistic safety assessment (PSA) method. To develop an importance analysis framework for cyber-attacks, possible cyber-attacks were identified with failure modes, and a PSA model for cyber-attacks was developed. For case studies, the quantitative evaluations of cyber-attack scenarios were performed using the proposed method. By using quantitative importance of cyber-attacks and identifying significant CDAs that must be defended against cyber-attacks, it is possible to develop an efficient and reliable defense strategy against cyber-attacks on NPPs. Keywords: Probabilistic safety assessment, Cyber security, Cyber-attacks, Nuclear power plant, Critical digital assethttp://www.sciencedirect.com/science/article/pii/S1738573318302833 |
| spellingShingle | Jong Woo Park Seung Jun Lee Probabilistic safety assessment-based importance analysis of cyber-attacks on nuclear power plants Nuclear Engineering and Technology |
| title | Probabilistic safety assessment-based importance analysis of cyber-attacks on nuclear power plants |
| title_full | Probabilistic safety assessment-based importance analysis of cyber-attacks on nuclear power plants |
| title_fullStr | Probabilistic safety assessment-based importance analysis of cyber-attacks on nuclear power plants |
| title_full_unstemmed | Probabilistic safety assessment-based importance analysis of cyber-attacks on nuclear power plants |
| title_short | Probabilistic safety assessment-based importance analysis of cyber-attacks on nuclear power plants |
| title_sort | probabilistic safety assessment based importance analysis of cyber attacks on nuclear power plants |
| url | http://www.sciencedirect.com/science/article/pii/S1738573318302833 |
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