• Journal of the Korea Society of Computer and Information
• /
• v.27 no.7
• /
• pp.109-114
• /
• 2022

Recently, child abuse cases such as the "16-month death of adopted children" have occurred one after another in our society and have emerged as a serious social problem. Child abuse not only significantly violates children's human rights, but also leaves scars on the child's body and sometimes threatens their lives. As a result, laws related to child abuse have been revised several times and related systems have been reorganized to protect the affected children safely and grow healthy, but child abuse cases continue to occur. Therefore, it is urgent to come up with effective measures to prevent child abuse crimes and protect affected children. Therefore, this study examines the concept and related laws of child abuse, the current status of child abuse, and suggests countermeasures to effectively respond to child abuse compared to the US child abuse legislation and child protection system.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.26 no.8
• /
• pp.1205-1212
• /
• 2022

Cyber threat targeting ICS (Industrial Control System) has indicated drastic increases over the past decade and Cyber Incident in Critical Infrastructure such as Energy, Gas Terminal and Petrochemical industries can lead to disaster-level accidents including casualties and large-scale fires. In order to effectively respond to cyber attacks targeting ICS, a multi-layered defense-in-depth strategy considering Control System Architecture is necessary. In particular, the centralized security log system integrating OT (Operational Technology) and IT (Information Technology) plays an important role in the ICS incident response plan. The paper suggests the way of implementing centralized security log system that collects security events and logs using OPC Protocol from Level 0 to Level 5 based on IEC62443 Purdue Model to integrate ICS security logs with SIEM (Security Information Event Management) operated in IT environment.

• KIPS Transactions on Computer and Communication Systems
• /
• v.12 no.4
• /
• pp.143-156
• /
• 2023

The domestic threat information sharing system to deal with various security threats in the rapidly changing cyber environment needs to be improved. In this study, to solve these problems and promote the activation of threat information sharing, we derive a research model based on the value-based containment model (VAM) for vital factors in information sharing. After conducting a Ricardian 5-point survey on a total of 204 individuals, the statistical results of the first 151 individuals were analyzed using SPSS and AMOS, and the statistical results of the second 204 individuals were analyzed using R-Studio. As a result, perceivability was found to have a significant impact as a core factor in the activation of cyber threat information sharing (β=0.405, p<0.01), and the hindrance factor was analyzed as innovation resistance (β=-0.152, p<0.01). Microscopically, the obtained results can be applied to factor analysis for activating information sharing of cyber threats by companies in the future, and macroscopically, they can contribute to the foundational development of a national cyber threat response system.

• Convergence Security Journal
• /
• v.22 no.2
• /
• pp.59-66
• /
• 2022

Recently, smart home technology has been developed with a great response due to the convenience of home automation. Smart home technology provides various services by connecting various Internet of Things (IoT) and sensors to a home network through wired/wireless networks. In addition, the smart home service easily and conveniently controls lighting, energy, environment, and door cameras through a wall pad. However, while it has become a social issue due to the recent hacking accident of wall pads, personal information leakage and privacy infringement are expected. Accordingly, it is necessary to prepare preventive and countermeasures against security vulnerability factors of wall pads. Therefore, this study expects that it can be used as basic data for future smart home application and response technology development by examining the weak causes and countermeasures related to wall pads.

• Journal of Software Assessment and Valuation
• /
• v.15 no.2
• /
• pp.121-128
• /
• 2019

Computing systems have various vulnerabilities to cyber attacks. In particular, various cyber attacks that are intelligent in the information society have caused serious social problems and economic losses. Traditional security systems are based on misuse-based technology, which requires the continuous updating of new attack patterns and the real-time analysis of vast amounts of data generated by numerous security devices in order to accurately detect. However, traditional security systems are unable to respond through detection and analysis in real time, which can delay the recognition of intrusions and cause a lot of damage. Therefore, there is a need for a new security system that can quickly detect, analyze, and predict the ever-increasing cyber security threats based on machine learning and big data analysis models. In this paper, we present a IDS model that combines machine learning and big data technology.

• Journal of Internet Computing and Services
• /
• v.19 no.5
• /
• pp.21-31
• /
• 2018

Cyber penetration attacks can not only damage cyber space but can attack entire infrastructure such as electricity, gas, water, and nuclear power, which can cause enormous damage to the lives of the people. Also, cyber space has already been defined as the fifth battlefield, and strategic responses are very important. Most of recent cyber attacks are caused by malicious code, and since the number is more than 1.6 million per day, automated analysis technology to cope with a large amount of malicious code is very important. However, it is difficult to deal with malicious code encryption, obfuscation and packing, and the dynamic analysis technique is not limited to the performance requirements of dynamic analysis but also to the virtual There is a limit in coping with environment avoiding technology. In this paper, we propose a machine learning based malicious code analysis technique which improve the weakness of the detection performance of existing analysis technology while maintaining the light and high-speed analysis performance applicable to commercial endpoints. The results of this study show that 99.13% accuracy, 99.26% precision and 99.09% recall analysis performance of 71,000 normal file and malicious code in commercial environment and analysis time in PC environment can be analyzed more than 5 per second, and it can be operated independently in the endpoint environment and it is considered that it works in complementary form in operation in conjunction with existing antivirus technology and static and dynamic analysis technology. It is also expected to be used as a core element of EDR technology and malware variant analysis.

• Korean Security Journal
• /
• no.60
• /
• pp.9-31
• /
• 2019

Due to the development of technology and popularization of drone, the so-called "dirty drone" that exploits drones for crimes and terrorism has become a social problem, and it is time to seriously consider the "revenge of drones." Indeed, the cases of threats posed by drones are expanding not only to threats to ground facilities, but also to aviation safety threats, more recently to large-scale events, demonstrations and crimes targeting specific personnel, and terrorism. This research clearly defined the concept of anti-drone when it emerged as a new type of social safety threat as it was abused in crime and terrorism, while response to it was not enough yet. Through this process, it was intended to present an effective anti-drones system. We analyzed the major controversial elements of anti-drone, and defined them as "comprehensive response activities at the legal, institutional and technical levels performed by law enforcement agencies, related technology and industrial entities in a way that prevents, detects, and blocks acts that violate public well-being and order, such as crimes and terrorism caused by the drones." To effectively respond to dirty drones, the authority of law enforcement agencies and the enactment of relevant laws were proposed. In the future, a comprehensive and systematic follow-up study of the anti system should be conducted.

• Journal of the Korea Institute of Information Security & Cryptology
• /
• v.34 no.4
• /
• pp.781-799
• /
• 2024

Recently, the US and EU have been institutionally introducing and promoting Coordinated Vulnerability Disclosure(CVD) to strengthen the response to security vulnerabilities in ICT products and services, based on collaboration with white-hat hackers. In response to these changes in cybersecurity, we propose a three-step approach to introduce CVD through the Information and Communications Network Act(ICNA). In the first step, to comprehend the necessity and requirements for legislating CVD, we survey the current situation in Korea and the trends of CVD in the US, EU, and OECD. In the second step, we analyze the necessity for legislating CVD and derive the requirements for its legislation. In this paper, we analyze the necessity for legislating CVD from three perspectives: the need for introducing CVD, the need for institutionalization based on law, and the suitability of the ICNA as the legislation. The derived requirements for CVD legislation include the establishment and publication of Vulnerability Disclosure Policy(VDP), legal protection for white-hat hackers, and designation and role assignments of coordinator. In the third step, we introduce approaches to apply the requirements for CVD legislation to the ICNA, which is the law governing prevention and response to cybersecurity incidents in private sector.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.32 no.8B
• /
• pp.502-508
• /
• 2007

This paper proposes a method to shut out all of the not certified network access packet by embodying the two-factor(MAC ADDRESS, ID/PASSWORD) authentication system. The Authenticating Gateway System takes over central server's policy and permit or hold up the packet by inherited policy. And checks the whether or not patched the OS version and getting influenced from computer virus. And takes the information about client's resources(H/W, S/W) without Agent in the client. That makes more stability of network operating circumstance and fast facing the attack from hackers. In the fixed mobile network circumstance, This method provides more simplicity and less expenses than IEEE802.1x authentication system(cisco nac).

• Convergence Security Journal
• /
• v.11 no.4
• /
• pp.19-29
• /
• 2011

After a change of government and the inauguration of President Barack Obama in 2009, there are various effort to set up a cybersecurity policy which is better than its predecessor. The legislative trend of cybersecurity is the one aspect of that. So we compare the legislative trend of cybersecurity in the Obama era to one in the Bush era and analyze that and find items which is helpful to Korea. It seems that the point of cybersecurity legislation of U.S.A. changes from tougheners of penalties to improvements to implementation system. We can find the implications for Korea From that. Cybersecurity is covered as a problem all over the nation and a security problem. It is necessary for Korea to get ready for new Pax Americana in cybersecurity in advance and to guarantee fundamental human rights.