• Convergence Security Journal
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• v.6 no.4
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• pp.141-151
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• 2006

The destructive power of cyber threat arrived to until the phase which it threatens to direct and seriously in national security undergoes an important national institutuin hacking event of 2004 and Internet paralysis accidents of 2003. 1. 25. So Cyber terror and Cyber warfare is not the hypothetical enemy situation. It is more actual security situation and identify as magnification of warfare concept of incapacitation national important ability include military command system of the adversary, communication, energy, finance and transportation system. consequently, with the progress of cyber threat, it is necessary that looking at a number of general plan to make up for the weak points in cyber warfare operation system. Thus, the focus of this study is to examine new ways of developing a comprehensive cyber security management system.

• Convergence Security Journal
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• v.16 no.5
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• pp.57-63
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• 2016

In recent years, there is growing interest in 'Fin-tech' in the domestic and international financial sector. And a variety of services in such a situation has emerged. To ensure the safety of from hacking attacks, many new technologies have been developed. These leading technology is the Bio-authentication method that you consider applying to the financial sector. Bio authentication is using biometric information. Also it is known that can cope the threat of fabrication and modifying attacks with shared and stored. However, Recently, When you look at hacking incidents of biometric data(560 million cases) in the United States Office of Personnel Management and advent of the fingerprints counterfeit technology, We can be known that should be reconsidered about the safety of bio-certification. Especially, it should be provided with a response measures for the problem of embezzlement that biometric information already been leaked. Thereby In this paper, by investigating biometric technologies and practices applied and of the vulnerability factor in many industries, it expected to be utilized in the prepared threats countermeasures in accordance with the application of the biometric authentication technology in a future.

• Convergence Security Journal
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• v.15 no.4
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• pp.73-82
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• 2015

Thanks to popularization of smart phone, mobile payment market is growing rapidly. As the obligatory use of digital certificate is abolished, easy-to-use payment that can settle with only password is being launched one after another. But its spreading speed is not fast highly. Because of concern about personal information leakage and security, unchangeability of payment habit, insufficiency of consumer protection, inadequacy of payment infrastructure and all sorts of regulations, easy-to-use payment is not activated. Recently global IT companys are entering mobile payment market competitively. It is because the sense of crisis that their survival can be dangerous from now on if they get left behind Fintech innovation and the mentality that they try to take the leadership of mobile payment market process. In this situation, the thorough preparation and a lot of effort are required to promote our autonomous easy-to-use payment growth without dependance on foreign country's. In this paper, the problems of local mobile easy-to-use payment are addressed in depth and the activation measures such as flexible and discriminative security, construction of customer protection system, law system maintenance, service differentiation are proposed.

• Convergence Security Journal
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• v.17 no.5
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• pp.19-25
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• 2017

Public institutions invest about half of the information protection budget annually to introduce information security products and information protection services in order to prevent cyber terrorism and establish organizational security. However, research on whether introduced information security products has a positive influence on improving the information security level of the actual institution is in an incomplete state, and accordingly, There are problems such as the measurement of the investment effect of the information security product introduced in the organization and the difficulty in selecting the optimum information security product that the agency actually needs. In this paper, prior research will conduct research on the influence of the introduction of information security products on the improvement of information security level of organization through analysis of operational data of inadequate information security products, and based on the research results, It would be useful to use it for information security practices such as optimal product selection and internal security policy formulation through validation of the introduction of information security products of public institutions.

• Journal of Convergence for Information Technology
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• v.9 no.9
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• pp.44-51
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• 2019

Recently, various platforms utilizing blockchains have appeared. In order to develop the blockchain, it is required to improve related laws and institutions. In this respect, we analysis of the laws and systems related to domestic blockchains, draw out the limitations, and suggest directions for improvement. The research method was analyzed the literature and related laws through literature review. It is difficult to analyze the whole law and system at one time, so we examined the necessary laws and systems to revitalize the blockchain. It is confirmed that legal improvement is needed on the scope of electronic transactions and electronic financial transactions, electronic commerce, digital signatures, import and export, personal information protection, blockchain industry promotion and research. Through this, we expect a balanced development of effective blockchain revitalization and protection of national fundamental rights. Individual studies on the legal provisions and systems for each item in the future can be conducted.

• Journal of the Korea Convergence Society
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• v.12 no.1
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• pp.49-55
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• 2021

Recently, with the development of database, it is possible to store a lot of data generated in finance, security, and networks. These data are being analyzed through classifiers based on machine learning. The main problem at this time is data imbalance. When we train imbalanced data, it may happen that classification accuracy is degraded due to over-fitting with majority class data. To overcome the problem of data imbalance, oversampling strategy that increases the quantity of data of minority class data is widely used. It requires to tuning process about suitable method and parameters for data distribution. To improve the process, In this study, we propose a strategy to explore and optimize oversampling combinations and ratio based on various methods such as synthetic minority oversampling technique and generative adversarial networks through genetic algorithms. After sampling credit card fraud detection which is a representative case of data imbalance, with the proposed strategy and single oversampling strategies, we compare the performance of trained classifiers with each data. As a result, a strategy that is optimized by exploring for ratio of each method with genetic algorithms was superior to previous strategies.

• Journal of Convergence for Information Technology
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• v.11 no.1
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• pp.118-127
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• 2021

In spite of various safety measures, coastal safety accidents continue to occur, so this study focused on using drones as countermeasures. Municipalities that already have coasts have begun operating unmanned multicopters for coastal safety management. In particular, by connecting an unmanned multi-copter to the currently applied smart city safety net system, it is possible to transmit real-time images of the scene in case of emergency in the coastal area to the local government safety information center. It is also expected to contribute significantly to strengthening safety management in coastal waters through a more rapid response to safety accidents. Therefore, in this paper, we propose the use of drones as an alternative to the limitations of the domestic coastal safety system by investigating the state of coastal safety accidents and analyzing the state of domestic coastal safety systems. In addition, it is expected to be a key breakthrough in the coastal area safety system by proposing a model linking the Korean K-Drone system.

• The Journal of the Convergence on Culture Technology
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• v.5 no.2
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• pp.183-188
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• 2019

This study analyzed the effects of short-term interest rates, exchange rates and international oil prices on international grain prices using the EGARCH-GED model. The yield before one month of the international grain prices itself was found to have a significant effect on international grain prices for most periods. During the entire analysis period, none of the economic variables appeared to have a significant effect on international grain prices, whereas during the exchange fall period, only oil prices were shown to have a significant effect on international grain prices. In addition, during the pre-crisis period, interest rates, exchange rates and oil prices did not all have a significant effect, but during the post-crisis period only oil prices had a significant effect on international grain prices. It turns out that the factors affecting international grain prices are changing with the passage of time.

• Journal of Convergence for Information Technology
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• v.11 no.4
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• pp.83-101
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• 2021

This study is to investigate, using AHP, what technologies should be applied first to Korean SMEs in order to respond to the 4th industrial revolution and change to a smart enterprise. To this end, technologies related to the 4th industrial revolution and smart factory are synthesized, and the classification criteria of Dae-Hoon Kim et al. (2019) are applied, but additional opinions of experts are collected and related technologies are converted to artificial intelligence (AI), Big Data, and Cloud Computing. As a base technology, mobile, Internet of Things (IoT), block chain as hyper-connected technology, unmanned transportation (autonomous driving), robot, 3D printing, drone as a convergence technology, smart manufacturing and logistics, smart healthcare, smart transportation and smart finance were classified as smart industrial technologies. As a result of confirming the priorities for technical use by AHP analysis and calculating the total weight, manufacturing companies have a high ranking in mobile, artificial intelligence (AI), big data, and robots, while service companies are in big data and robots, artificial intelligence (AI), and smart healthcare are ranked high, and in all companies, it is in the order of big data, artificial intelligence (AI), robot, and mobile. Through this study, it was clearly identified which technologies should be applied first in order to respond to the 4th industrial revolution and change to a smart company.

• Journal of the Korea Convergence Society
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• v.8 no.10
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• pp.67-73
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• 2017

In this study, we mainly inquired into structural reforms of the current legal system that could minimize the side effects and protect financial customers as the use of AI robo-advisor were increasing. First, regarding a specific reform, it is necessary to introduce and establish a rapid detection system for unusual transactions by the Robo-advisor management company, the strict liability of the management company, the management company's mandatory obligation to obtain indemnity insurance, and limited criminal penalties. Furthermore, it is necessary to establish a comprehensive basic law regarding AI. In this basic law, the promotion of the development of AI technology and the minimization of side effects should be dealt with in harmony with each other. Like the approach of this study, we hope that similarly detailed and practical discussions will be made on the AI era from various perspectives in the future.