• Journal of the Korea Institute of Information Security & Cryptology
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• v.32 no.5
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• pp.827-835
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• 2022

In order to use online financial services, user authentication technology is necessary. Password check through keyboard typing is the most common technique. However, since it became known that key stokes on the keyboard can be intercepted easily, many Internet banking services and easy payment services have adopted the virtual keyboard. However, contrary to the expectation that the virtual keyboard will be safe, there is a risk that key strokes on the virtual keyboard can be leaked. In this paper, we analyzed the possibility of password leaking on the virtual keyboard and presented a password leaking method using mouse event hooking and screen capture in PC operating system. In addition, we inspected the possibility of password leak attacks on several famous Korea Internet banking websites and simple payment services, and as a result, we verified that the password input method through the virtual keyboard in the PC operating system is not secure.

• Industry Promotion Research
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• v.7 no.3
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• pp.65-70
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• 2022

The purpose of this study was to investigate the child counselling process of a 5-year old girl with anger problem. Her mother had difficult on caring a child. The researcher conducted 47 session of child counseling through child-centered play therapy once per week during 14months for 40 minutes. Parent consultation session follwed for 10 minutes. The child expressed her aggression, control, desire of affection and power during the sessions. As a result, the child's anger decreased, and child-mother relationship improved. Finally, the child successfully adapted new school life. The mother reported that raising children was much easier than before. This study is meaningful that it is a case study of a child's intervention in counseling prior to her entering elementary school. This study showed her adaptive school lifestyle during the beginning of the first year.

• Industry Promotion Research
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• v.7 no.3
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• pp.71-75
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• 2022

The purpose of this study was to investigate the child counselling process of a 6-year old girl. The child has showed inattention and impulsity. Her mother had difficulty on caring a child. The researcher conducted 63 session child counseling through play therapy once per week after tested clinical psychological full battery. During the counseling process, a child showed desire of affection and aggressive and impulsive behavior through the child's leading play. As a result the child's inattention and impulsivity decreased, and child-mother relationship improved. The child could express her feelings to their parents in concrete terms. Finally, the child successfully adapted new school life. The mother reported that raising children was much easier than before, and she decided to have a follow-up counseling once a month. This study is meaningful in that it is a case study conducted during 1 year and 8months since she was 6-year old. The young child becomes primary school girl. In this study, it was confirmed that children had an adaptive school life during the first and second grades.

• The Journal of the Convergence on Culture Technology
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• v.8 no.5
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• pp.121-126
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• 2022

This study purports to achieve three different yet related tasks. First of all, this study reviews thoroughly social economy as an academic subject which have been drawing much attentions in social science. Secondly, this study examines developmental trajectory of social economy in Korea and reviews categories and types of social economy in current Korean society. Lastly, this study introduces several arguments around social economy. For these tasks, brief summary of the definitions of social economy from foreign and domestic scholars will be provided. Then five controversial subjects on social economy will be introduced. Those are the effect of social economy on employment, the future of social economy in the context of welfare state, the sustainability of social economy, the relationship of social economy with civil society, and the relationship between social economy and basic income. The author hopes that this study could provide thorough pirctire of social economy conceptually as well as practically for those who are interested in social economy both in academia and civil society organizations.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.33 no.4
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• pp.687-697
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• 2023

Botnets, whose attack patterns are becoming more sophisticated and diverse, are recognized as one of the most serious cybersecurity threats today. This paper revisits the experimental results of botnet detection using autoencoder, a semi-supervised deep learning model, for UGR and CTU-13 data sets. To prepare the input vectors of autoencoder, we create data points by grouping the NetFlow records into sliding windows based on source IP address and aggregating them to form features. In particular, we discover a simple power-law; that is the number of data points that have some flow-degree is proportional to the number of NetFlow records aggregated in them. Moreover, we show that our power-law fits the real data very well resulting in correlation coefficients of 97% or higher. We also show that this power-law has an impact on the learning of autoencoder and, as a result, influences the performance of botnet detection. Furthermore, we evaluate the performance of autoencoder using the area under the Receiver Operating Characteristic (ROC) curve.

• Korean Journal of Social Welfare Studies
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• v.42 no.3
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• pp.33-56
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• 2011

The purpose of this study is to investigate the effect of grandparenting on the grandparent's level of depression. In addition, it is to test the mediating effect of social support and the moderating effect of household type on the relationships between variables. The 555 grandparent sample in this study was from the Korean Longitudinal Study of Aging(KLoSA). The findings indicated that grandparenting(grandparenting time per day and total weeks of grandparenting per year) was significantly related to the grandparent's level of depression. In addition, the grandparent's age was also associated with grandparenting, grandparent's depression, and social support. Grandparent's health condition and marital status was associated with social support. Grandparent's gender had a significant relationship with grandparent's depression and grandparenting time per day. Social support had a direct effect to the grandparent's depression; however, it was not a statistically significant mediator between grandparenting and grandparent's depression. In addition, household type was not a significant moderator of measuring the relationships among grandparenting, grandparent's depression, and social support. Implications for social work practice were discussed based on the result of the study.

• Journal of Creative Information Culture
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• v.5 no.1
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• pp.71-80
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• 2019

With the spread of smart phones, the Internet became a major 'space' of students' daily life and, at the same time, negative aspects of the internet are affecting their life. However, it doesn't seem that there is enough research on this subject. This study was conducted on 278 students in Gyeonggi. The results were as follows. First, gifted students' information and communication ethics index was higher than general students. Second, there was no statistically significant difference according to the gender of information and communication ethics index. Urban districts showed lower index in the upper grades than the lower grades. Third, about 10% of the students had experience of contact with harmful content, and about 1% of students had experienced cyber-wrongdoing. Through the results of this study, systematic education of IT ethics at the elementary school grade level can be expected to prevent school violence, improve information and communication culture, and serve as a future work ethic.

• Journal of Korean Society of Disaster and Security
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• v.15 no.4
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• pp.1-9
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• 2022

This study analyzes the institutional status related to 'evacuation' and 'firefighting' in underground subway stations, derives institutional limitations for 'evacuation' in underground subway stations, and proposes guidelines in terms of architectural space based on this. As a result of the study, the following points were derived. First, since similar standards are separately enacted in individual laws and it is difficult to grasp the standards and they are dualized, it is necessary to standardize and regulate the space where users stay according to the movement of urban railway users, limited to urban railways. Second, in order to use trains, a special procedure called 'ticketing' must be considered, and regulations on evacuation safety zones and evacuation stairs between the waiting room and the platform are required. Finally, if there is a platform at a depth of more than 30m underground, it is necessary to install an evacuation floor in accordance with standards similar to the current building law.

• Journal of the Korea Society of Computer and Information
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• v.14 no.11
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• pp.187-197
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• 2009

Visitors feel pleasure and delight with seeing and participation at the same time at theme park. Owing to participation characteristics of theme park, visitors are not able to satisfy their desire only with simple seeing, and influenced by the sense caused by participation and seeing. The study herein presumed that global attachment regarded as characteristic features determining individual relationship characteristics influences behavior and perception of visitors after visiting theme park, and speculated the process which attachment type of visitors influences to satisfaction and attitude. Moreover, in a point of view of 3 factors which form consumer attitude, recognition, feeling, behavioral desire, factors which enhances satisfaction and behavioral desire of visitors are organized and speculated. As a result of study herein, influence of stable attachment was not significant, while personal service and positive feeling shows importance.

• Journal of the Korea Convergence Society
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• v.13 no.1
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• pp.253-259
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• 2022

This study aims to provide a basis for preparing specific welfare measures for healthy lives of those who have lost vitality due to COVID-19 by identifying the Korean people's level of fear of COVID-19 and vaccine acceptability, and by examining people's life satisfaction. . The research results are as follows. First, the fear of coronavirus perceived by the survey subjects was found to be very high. Second, when compared to other vaccines against coronavirus, fear or fear of the vaccine was significantly higher. Third, the vaccine acceptance of adults perceived by the survey subjects was positive. Fourth, the reliability of the government policy on the coronavirus prevention vaccine was found to be relatively high. Fifth, in the evaluation of quality of life, economic satisfaction was lower than in other areas, and emotional satisfaction was found to be relatively high compared to other areas.