• Journal of Digital Convergence
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• v.15 no.6
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• pp.219-227
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• 2017

Network access control should be able to effectively block security threats to the IT infrastructure, such as unauthorized access of unauthorized users and terminals, and illegal access of employees to internal servers. From this perspective, it is necessary to build metrics based on relevant standards to ensure that security is being met. Therefore, it is necessary to organize the method for security evaluation of NAC according to the related standards. Therefore, this study builds a model that combines the security evaluation part of ISO / IEC 15408 (CC: Common Criteria) and ISO 25000 series to develop security metric of network access control system. For this purpose, we analyzed the quality requirements of the network access control system and developed the convergence evaluation metric for security of the two international standards. It can be applied to standardization of evaluation method for network access control system in the future by constructing evaluation model of security quality level of network access control system.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.24 no.6
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• pp.1225-1241
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• 2014

Recently, Financial companies implement DLP(Data Leaks Prevention) security products and enforce internal controls to prevent customer information leaks. Accidental data leaks in financial business increase more and more because internal controls are insufficient. Security officials and IT operation staffs struggle to plan countermeasures to respond to all kinds of accidental data leaks. It is difficult to prevent data leaks and to control information flow in business without research applications that handle business and privacy information. Therefore this paper describes business and privacy information flow on applications and how to plan and deploy security container based OS-level and Hypervisor virtualization technology to enforce internal controls for applications. After building security container, it was verified to implement internal controls and to prevent customer information leaks. With security policies additional security functions was implemented in security container and With recycling security container costs and time of response to security vulnerabilities was reduced.

• Journal of the Institute of Electronics and Information Engineers
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• v.53 no.6
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• pp.69-79
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• 2016

If the security incidents are occurred then, the company concentrates on the quick reaction to security incidents, reports the reason of incidents, it's problem, the result of measure to the top management team. There will be the case that actively finding problems and taking it's actions with linking the internal problems whenever external security incidents are occurred or that having only interest of problems at the moment. It is important that lasting the preventing action to prevent security incidents than not concentrating on only the security incidents are occurred. To do this, the systematical and consistent method for this should be provided. In this paper, we will provide a security incident forecast system. The security incident forecast system updates the incident induction factor which helping to forecast the potential security incidents on the database inferred from the direct security incidents which are occurred inside the company as well as the indirect security incidents which are occurred outside the company and makes interact with the incident experience and the measure process systematically. The security incident forecast system is the efficient measure about the potential security incidents in taking precaution.

• Journal of Convergence for Information Technology
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• v.7 no.2
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• pp.119-124
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• 2017

Information is a valuable asset regardless of the size of the enterprise and information security is an essential element for the survival and prosperity of the enterprise. However, in the case of large corporations, Security is ensured through rapid introduction of information security management system. but In the case of SMEs, security systems are not built or construction is delayed due to complex factors such as budget constraints, insufficient security guidelines, lack of security awareness. In this paper, we analyze the actual situation of information security management of SMEs through questionnaires, and We would like to suggest a comprehensive security plan for SMEs in free or inexpensive ways. We believe that by applying the method presented in this paper, SMEs will be able to implement the lowest cost basic information security and will benefit SMEs who plan to establish an information security plan.

• Convergence Security Journal
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• v.22 no.5
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• pp.81-87
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• 2022

The purpose of this paper is to take a look the effect of the physical security level of companies possessing national core technology on security performance and work efficiency. To this end, a survey was set out for about 200 security officers for a month. In the survey, the independent variable was physical security level, the parameter was security performance, and the dependent variable was work efficiency. Reliability analysis, validity analysis, discriminant validity analysis, etc. were analyzed for causality through SPSS. As a result, "Physical Security Level ⇒ Security Performance, Security Performance ⇒ Work Efficiency" was adopted, but "Physical Security Level ⇒ Work Efficiency" was rejected. Therefore, it was found that the physical security level affects work efficiency through security performance, which is a parameter. However, it was found that the physical security level did not directly affect work efficiency. In order to improve work efficiency in the future, improving security performance should be a priority.

• Convergence Security Journal
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• v.22 no.1
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• pp.93-98
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• 2022

Information service technology continues to develop, and information service continues to expand based on the IT convergence trend. The premeter-based security model chosen by many organizations can increase the effectiveness of security technologies. However, in the premeter-based security model, it is very difficult to deny security threats that occur from within. To solve this problem, a zero trust model has been proposed. The zero trust model requires authentication for user and terminal environments, device security environment verification, and real-time monitoring and control functions. The operating environment of the information service may vary. Information security management should be able to response effectively when security threats occur in various systems at the same time. In this study, we proposed a security policy distribution system in the object reference method that can effectively distribute security policies to many systems. It was confirmed that the object reference type security policy distribution system proposed in this study can support all of the operating environments of the system constituting the information service. Since the policy distribution performance was confirmed to be similar to that of other security systems, it was verified that it was sufficiently effective. However, since this study assumed that the security threat target was predefined, additional research is needed on the identification method of the breach target for each security threat.

• Convergence Security Journal
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• v.5 no.1
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• pp.63-74
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• 2005

Security products were developed and diffused for defense all emergency on cyberspace on E-commerce, but it requires special technique of information security in maintenance. The operation and need of security system was required in a public corporation and company, but it isn't provided in an appropriate time. Therefore, the domestic sites were vulnerable by security vulnerability. In this paper, we propose on the design and implementation of the data integrity analysis system that a novice manage usefully and automatically for management of E-commerce security products.

• Information and Communications Magazine
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• v.19 no.8
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• pp.128-136
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• 2002

It is an active security that has the research field which has more powerful responding mechanism comparing to current network security technology, has an ability to introduce new security mechanism according to changing our environments, and can support effective security management. Our goal is to introduce a new category of internet security technologies on network survivability: active security technology. It is a new security technology that blocking network or computers. before malicious traffics are reached to them, including protecting hosts or small area network from hackers.

• Proceedings of the Korea Information Processing Society Conference
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• 2021.11a
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• pp.1036-1039
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• 2021

산업제어시스템에 침해사고가 발생하여 서비스 제공이 중단될 경우 사회에 큰 혼란을 야기할 수 있기 때문에 주기적으로 내부 자산의 보안 수준을 관리하는 것은 매우 중요하다. 위 논문은 산업제어시스템 내부 자산의 보안성 확립을 위한 산업제어시스템 자산 유형별 보안성 평가 프로그램을 제안한다. 동일 자산 그룹에 따라 보안조치를 선별적으로 적용하고 신규 취약점을 지속적으로 파악하는 프로세스를 프로그램에 적용하여 제어시스템 보안 수준을 안정적으로 유지하는 사내 프로그램으로 활용될 수 있도록 한다.

• Review of KIISC
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• v.21 no.5
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• pp.55-64
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• 2011

제어 시스템은 수도, 오일 등 국가기반시설을 감시 및 제어하는 시스템이다. 최근 이러한 제어 시스템을 공격 목적으로 하는 사이버 공격이 발생하고 있어 제어 시스템에 대한 보안 필요성이 대두되고 있다. 이러한 제어 시스템은 일반적인 IT 시스템과는 달리 상이한 구조적 특성을 갖고 있어 제어 시스템의 특성에 맞는 보안정책을 마련해야 한다. 이를 위해 각 국가에서는 제어 시스템의 보안정책을 재정립하고 있으며 연구기관을 설립하고 프로젝트를 진행하는 등 보안 취약점을 해결하기 위한 노력을 하고 있다. 따라서 본 고에서는 국내 외 제어 시스템에 대한 보안정책 동향 및 보안 취약점을 분석하고자 한다.