• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
• /
• v.8 no.6
• /
• pp.835-844
• /
• 2018

Recently, as the number of smartphone users has been increasing worldwide, various services such as electronic payment, internet use, and financial settlement are being used as a smartphone. In addition, researches for home appliance control and automobile control using smartphone are conducted. As such, smartphone users can enjoy a more convenient life, but by hacking smartphones, tapping texts and conversations on smartphones, tracking location through spy apps, DDoS attacks using smartphones, and malicious apps When a message is received at a specific telephone number when using a micropayment, the corresponding text message is transmitted to a remote server, thereby increasing the risk of leakage of personal information and the like. Therefore, in this paper, we define the risk factors of the smartphone that are caused by the internal and external environmental, physical, contents (apps) of the smartphone through the smartphone that we use in real life, We propose a method to check vulnerability of smartphone security solution such as CC evaluation and the most effective response technique for each risk of smartphone by defining the technique.

• Journal of the Korea Institute of Information Security & Cryptology
• /
• v.24 no.1
• /
• pp.207-214
• /
• 2014

Recently, smartphone spyware resembles various types of virus components in PCs and has trends getting more and more severe. Users do not perceive the risk factors severely even if smartphone security is very vulnerable in spite of the smartphone spyware growth. Thus, this study observes the influence of information security in selecting smartphone based on the personal inclinations and spyware perceptions. The main variables of study model are such as the degree of personal risk-accepting and the risk of smartphone spyware as independent variables and smartphone purchasing intention as a dependent variable. The model is tested using SPSS 21 packages on the effective 200 samples gathered through questionnaire survey on the present smartphone users. As a result, the two main hypotheses which are "the degree of personal risk-accepting will influence on the perceiving risk of smartphone spyware" and "the perceiving risk of smartphone spyware will influence on smartphone purchasing intention" were significant statistically. Therefore, we could find out information security's influence on the selecting smartphone.

• International Commerce and Information Review
• /
• v.16 no.4
• /
• pp.35-54
• /
• 2014

Since smart phone users are continually increasing, smart phone based mobile banking users are increasing too. Therefore this study analyzes behavior of smart phone based mobile banking users. This study surveyed 400 people aged 10 to 50. The survey shows social effect influences convenience of smart-phone based mobile banking, perceived danger, and perceived security. Also,'promptness', the element of convenience has influence on trust. As perceived danger was higher, it was more vulnerable to resistance. The intention of smart-phone based mobile banking was influenced by trust and resistance. Specifically rising of intention was more influenced by lifting trust than lowering resistance.

• Journal of The Korean Association of Information Education
• /
• v.18 no.2
• /
• pp.203-212
• /
• 2014

With regard to recently emerged problems of smartphone addiction among adults and adolescents, this paper researched upper-grade elementary students depending on various demographic factors that have not been studied thoroughly so far. The survey was conducted on 1570 students in grades 4~6 of schools in Gyeonggi province. Results showed that, first, the average rate of smartphone ownership was about 66%. Second, about 1% of the students belonged to high-risk group, 5.7% to at-risk group, and normal user group was 93.3%. Third, based on the demographic factors, grade and academic achievements each was significantly correlated to the type of addiction group. For example, students with poor academic performance or in higher grade were more likely to be highly addictive. Fourth, both groups of at-risk and of normal-user pertaining to these factors - in urban areas, male students, sixth-grade, in dual income families - showed higher addictiveness score. But they were contrasted in the aspects of household economy and academic performance: at-risk group was more addictive in affluent families or excellent academic performance, whereas normal-user group had higher level of addictiveness in case of poor families or lower academic performance.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2015.04a
• /
• pp.277-280
• /
• 2015

자본주의는 시장 경제를 토대로 하고 있다. 시장 경제는 주식시장이 핵심이며, 주식시장의 위험회피를 위한 파생시장은 결국 자본주의의 가장 근본적인 요소이다. 다양하고 복잡한 파생시장에서 시스템 트레이딩의 중요성은 나날이 커지고 있으며, 감정을 극복하고 전략적인 매매를 하기 위한 최선의 방법이기도하다. 한국의 시스템 트레이딩은 전통적인 TS와 최신기술로 탄생한 Multicharts가 있다. Multicharts는 틱 단위의 신호데이타를 분석하여 실시간 거래를 할 수 있는 뛰어난 시스템이지만 아직 스마트폰 에이전트가 없다. PC에서는 Multicharts의 모든 기능을 수행할 수 있지만 관리자가 어디에서나 상황을 체크하고 제어할 수 있다면 훨씬 효과적인 운용이 가능할 것이다. PC에 기록되는 신호정보와 거래정보를 스마트폰으로 확인하고, 전략 실행을 스마트폰에서 제어하는 것만 가능해도, 보다 여유롭고 효율적인 파생거래를 할 수 있다. 이를 위해 안드로이드 폰과 PC간의 보안 연결을 설정하고 데이터 동기화를 구축하며, 이벤트 처리를 구현했다. 그리고 다수의 샘플 전략을 이용하여 스마트폰 UI를 구성하고 이의 효율성을 테스트하였다.

• Journal of Digital Convergence
• /
• v.17 no.2
• /
• pp.453-462
• /
• 2019

This study investigates the relationship between controllability, severity, unrealistic optimism and risk perception of risk factors related to location - based SNS services for smartphone users. For this purpose, I surveyed university students who had experience using location - based SNS service. The main results are as follows. First, controllability has a statistically significant effect on unrealistic optimism. Second, Severity had a statistically significant negative impact on unrealistic optimism. Third, Controllability did not have a statistically significant effect on risk perception, Fourth, Severity did not have a statistically significant effect on perceived risk. Fifth, Unrealistic optimism had a statistically significant negative impact on perception of risk. The results of this study will contribute to the prevention of privacy incidents and the protection of smartphone users by using location - based SNS service. On the one hand, future research will need to look at the relationship between unrealistic optimism and risk prevention or coping behavior.

• Journal of the Korea Society of Computer and Information
• /
• v.16 no.6
• /
• pp.155-164
• /
• 2011

APP based on the smart phone is being utilized to various scopes such as medical services in hospitals, financing services at banks and credit card companies, and ubiquitous technologies in companies and homes etc. In this service environment, exposures of smart phones cause loss of assets including leaks of official/private information by outsiders. Though secret keys, pattern recognition technologies, and single image authentication techniques are being applied as protective methods, but they have problems in that accesses are possible by utilizing static key values or images like pictures. Therefore, this study proposes a face authentication technology for protecting smart phones from these dangerous factors and problems. The proposed technology authenticates users by extracting key frames of user's facial images by real time, and also controls accesses to the smart phone. Authentication information is composed of multiple key frames, and the user' access is controlled by distinction algorism of similarity utilizing DC values of image's pixel and luminance.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2016.07a
• /
• pp.237-238
• /
• 2016

대부분의 작업환경에서는 여러 가지 위험요소로 인한 안전사고가 자주 발생한다. 추락이나 작업환경의 붕괴 등 안전사고 발생시, 작업자가 관리자에게 응급상황을 전해야하지만, 사고로 인해 작업자가 원활하게 몸을 사용하지 못하는 경우에는 응급상황을 전달하는데 문제점이 발생한다. 본 논문에서는 이러한 문제를 해결하기 위해서 블루투스로 스마트폰에 응급상황을 전할 수 있는 웨어러블 단말기와 스마트폰의 WI-FI나 LTE망을 사용하여 작업자의 상황을 실시간으로 모니터링 할 수 있는 안전 시스템을 설계한다.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.19 no.2
• /
• pp.473-482
• /
• 2024

This study utilized virtual reality to construct a simulated public restroom environment to identify potential hazards. The objective was to discern actual risks in real-world public restrooms through this virtual setup. During the virtual restroom experience, data from the built-in 3-axis accelerometer and gyroscope sensors of testor's smart phones were collected. Analysis of this data helped in identifying spatio temporal factors impacting the users. The determination of these factors as risk elements was based on an evaluation algorithm grounded in data analysis.

• Journal of Digital Convergence
• /
• v.15 no.9
• /
• pp.79-85
• /
• 2017

The purpose of this study was to investigate utilization behaviors of smartphones while walking that are increasing recently and to examine the effects of smartphone usage patterns on human factors of pedestrian safety. In order to understand the motives and actual conditions of pedestrians' use of smart phones, a online questionnaire survey was conducted on people in their 20~30s who use smartphones. As a result, 98.6% of the respondents had experience using smartphones while walking. After performing the survey by extracting 17 uses the synchronization elements in the prior studies was extracted with two factors from the factor analysis. Particularly, respondents whose motivation to use smartphones was 'pandemic' were analyzed to have an influence on the risk of accident due to use of smartphones among human factors of pedestrian safety.