• Journal of Information Processing Systems
• /
• 제16권1호
• /
• pp.61-82
• /
• 2020

The security risk management used by some service providers is not appropriate for effective security enhancement. The reason is that the security risk management methods did not take into account the opinions of security experts, types of service, and security vulnerability-based risk assessment. Moreover, the security risk assessment method, which has a great influence on the risk treatment method in an information security risk assessment model, should be security risk assessment for fine-grained risk assessment, considering security vulnerability rather than security threat. Therefore, we proposed an improved information security risk management model and methods that consider vulnerability-based risk assessment and mitigation to enhance security controls considering limited security budget. Moreover, we can evaluate the security cost allocation strategies based on security vulnerability measurement that consider the security weight.

• 디지털산업정보학회논문지
• /
• 제14권3호
• /
• pp.55-68
• /
• 2018

In this paper, we identify and evaluate the information security factors considered in outsourcing development of information systems for defense agency with analytic hierarchy process(AHP). To assess the information security elements, we prepared three groups including the experts of a defense agency, subcontractor managers and subcontractor practitioners who are involved in developing information systems. And the relative importance of security factors were analyzed using questionnaires and responses. As a result of analysis of 27 security factors, factors corresponding to human and physical security as a whole were evaluated as having higher importance. Although there are some differences in the ranking of some importance according to human roles, they can be positive for the implementation of complementary information security. And administrative security and technical security can be relatively insignificant considering that they can be considered as infrastructure of the overall information environment. The result of this paper will be helpful to recognize the difference of perception of information security factors among the persons in the organization where collaboration is activated and to prepare countermeasures against them.

• 한국정보시스템학회지:정보시스템연구
• /
• 제28권4호
• /
• pp.105-129
• /
• 2019

Purpose Issues related to information security have been a crucial topic of interest to researchers and practitioners in the IT/IS field. This study develops a research model based on a Structure-Conduct-Outcome (SCO) framework for the social exchange relationship between employees and organizations regarding information security. Design/methodology/approach In applying an SCO framework to information security, structure and conduct are activities imposed on employees within an organizational context; outcomes are activities that protect information security from an employee. Data were collected from 438 employees working in manufacturing and service firms currently implementing an information security policy in South Korea. Structural equation modeling (SEM) with AMOS 22.0 is used to test the validation of the measurement model and the proposed casual relationships in the research model. Findings The results demonstrate support for the relationships between predicting variables in organization structure (security policy and physical security system) and the outcome variables in organization conduct (top management support, security education program, and security visibility). Results confirm that the three variables in organization conduct had a positive effect on individual outcome (security knowledge and compliance intention).

• 한국IT서비스학회지
• /
• 제13권2호
• /
• pp.1-17
• /
• 2014

Social networking service (SNS) is a service that allows people to share information, manage relationships with others, and express themselves on the Internet. The number of SNS users have increased explosively with the growth of mobile devices such as smartphones. As the influence of SNS has grown extensively, potential threats to privacy have also become pervasive. The purpose of this study is to empirically examine the main factors that affect users' intentions to use security functions provided by their SNS. The main theories for this study include the rational choice theory and the theory of planned behavior. This study has identified the factors that affect intention to use security functions. In addition, security function awareness and information security awareness are found to be important antecedents for intention to use security functions. The results of this study implies that when SNS providers develop security policies, they should consider the ways to improve users information security awareness and security function awareness simultaneously.

• 정보보호학회논문지
• /
• 제18권3호
• /
• pp.131-142
• /
• 2008

조직은 정보의 획득과 관리를 통하여 조직의 전략을 관철한다. 특히 기술과 같은 기업의 사활을 결정짓는 중요한 정보의 유출은 조직의 생존에도 영향을 미친다. 따라서 조직의 효과적인 정보보호관리를 위해서 정보보호관리체계 및 정보보호정책의 수립이 필요하다. 본 연구는 조직의 정보보호에 근간이 되는 정보보호정책의 성숙도에 영향을 미치는 요인을 문헌 연구를 통해서 분석하고, 정보보호정책의 성숙도에 영향을 미치는 요인을 검증한다. 본 연구는 정보보호정책의 수립과 정보보호수준 제고를 위한 연구의 이론적 토대를 제공한다. 본 연구의 결과는 국가 및 민간기관이 효과적으로 정보보호 정책의 수립을 위한 방향성을 제시하고 있다.

• 한국컴퓨터정보학회논문지
• /
• 제23권11호
• /
• pp.75-84
• /
• 2018

Social engineering attack means to get information of Social engineering attack means to get information of opponent without technical attack or to induce opponent to provide information directly. In particular, social engineering does not approach opponents through technical attacks, so it is difficult to prevent all attacks with high-tech security equipment. Each company plans employee education and social training as a countermeasure to prevent social engineering. However, it is difficult for a security officer to obtain a practical education(training) effect, and it is also difficult to measure it visually. Therefore, to measure the social engineering threat, we use the results of social engineering training result to calculate the risk by system asset and propose a attack graph based probability. The security officer uses the results of social engineering training to analyze the security threats by asset and suggests a framework for quick security response. Through the framework presented in this paper, we measure the qualitative social engineering threats, collect system asset information, and calculate the asset risk to generate probability based attack graphs. As a result, the security officer can graphically monitor the degree of vulnerability of the asset's authority system, asset information and preferences along with social engineering training results. It aims to make it practical for companies to utilize as a key indicator for establishing a systematic security strategy in the enterprise.

• 정보보호학회논문지
• /
• 제32권2호
• /
• pp.355-370
• /
• 2022

본 연구는 개인적 요인에 초점을 맞춘 기존 연구를 확장하여, 조직의 환경적 요인(정보보안문화, 경영진리더십)이 조직 구성원의 정보보안 행동(정보보안정책 준수 의도, 정보보안 참여 의도)에 미치는 영향을 살펴본다. 본 연구는 금융기관 구성원 236명으로부터 데이터를 수집하였으며, 본 연구에서 개발한 모형을 구조방정식모형으로 분석하였다. 분석 결과, 정보보안문화는 정보보안정책 준수 의도와 정보보안 참여 의도에 모두 긍정적인 영향을 주었다. 거래적 리더십은 정보보안정책 준수 의도와 정보보안 참여 의도에 모두 긍정적인 영향을 주었지만, 변혁적 리더십은 정보보안 참여 의도에만 긍정적인 영향을 주었다.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제11권9호
• /
• pp.4588-4608
• /
• 2017

The measurement of information security levels is a very important but difficult task. So far, various measurement methods have studied the development of new indices. Note, however, that researches have focused on the problem of attaining a certain level but largely neglecting research focused on the issue of how different types of possible flaws in security controls affect each other and which flaws are more critical because of these effects. Furthermore, applying the same weight across the board to these flaws has made it difficult to identify the relative importance. In this paper, the interrelationships among security flaws that occurred in the security controls of K-ISMS were analyzed, and the relative impact of each security control was measured. Additionally, a case-control study was applied using empirical data to eliminate subjective bias as a shortcoming of expert surveys and comparative studies. The security controls were divided into 2 groups depending on whether or not a security flaw occurs. The experimental results show the impact relationship and the severity among security flaws. We expect these results to be applied as good reference indices when making decisions on the removal of security flaws in an enterprise.

• 정보보호학회논문지
• /
• 제24권6호
• /
• pp.1271-1284
• /
• 2014

본 논문에서는 정보보호 관리체계를 구축하고 운영하고 있는 기업에서 외부감사(ISO27001)와 내부감사(보안전담조직에 의한)에 대한 결함 및 권고사항을 기술적 영역, 관리적 영역, 물리적 영역으로 분류하고 예산과 투자에 대한 상관관계를 확인하여 어떠한 영향이 있는지 분석하였다. 분석 결과는 시간의 흐름에 따라 관리적 보안영역과 기술적 보안영역에서 일관성 있는 연관관계를 확인하였으며 특히 미집행 예산(예산액-집행액) 규모와 감사 결함 및 권고사항의 수가 정(+)의 관계에 있음을 확인할 수 있었다. 이를 통해 상관분석 결과에 따른 유사도를 통계 분석하여 정보보호 투자의 효과성을 검증할 수 있는 모델을 제시한다. 그리하여 기업의 정보보호 투자에 대한 체계적인 방법론 접근과 정보보호 정책 수립 시 정확한 의사결정 방향에 도움이 되고자 한다.

• 정보처리학회논문지:컴퓨터 및 통신 시스템
• /
• 제3권9호
• /
• pp.301-310
• /
• 2014

정보의 가용성, 접근성, 안전성을 확보하기 위한 선제적인 정보보호 관리의 부재는 서비스 연속성을 훼손하여 고객에게 뿐만 아니라 조직의 성과와 경쟁력에 심각한 리스크를 가져다 줄 수 있다. 본 연구는 정보보호 성숙도가 조직성과에 미치는 영향을 분석하기 위하여 문헌 조사를 통해 조직성과, 위험 관리 프로세스 성숙도, 위험 평가 프로세스 성숙도, 정보보호 정책지표를 포함하는 연구모형을 만들고 설문을 통한 실증 분석을 하였다. 연구결과 위험 관리 및 위험 평가의 프로세스 성숙도와 조직성과 간에는 높은 인과 관계가 있는 것으로 나타났다. 하지만 정보보호 인력비율, 정보보호 예산비율에 따라 정보보호 성숙도가 조직성과에 미치는 영향은 차이가 없는 것으로 나타났다. 이는 정보보호 성숙도 수준은 조직성과에 영향을 미치나, 실효성이 검증되지 않은 정보보호 정책 및 규제는 정보보호 성숙도가 조직의 성과 향상의 촉매제로 활용하는데 한계가 있음을 시사하고 있다.