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양희동,이만희,Yang, Hee-dong,Lee, Man-hee 한국정보보호학회 2022 정보보호학회논문지 Vol.32 No.5
온라인상에서 안전하게 금융서비스를 이용하기 위해서는 사용자를 인증하는 기술이 요구된다. 키보드를 사용한 비밀번호 입력 방식이 가장 일반적이나, 키보드 입력이 쉽게 유출될 수 있음이 알려짐에 따라 많은 인터넷 뱅킹 서비스 및 간편 결제 서비스에서는 가상키보드를 사용하고 있다. 하지만 안전할 것이라는 기대와 달리, 가상키보드 역시 키보드 입력이 유출될 위험성이 존재했다. 본 논문에서는 가상키보드의 비밀번호 유출 가능성을 분석하고, PC 환경에서 마우스 이벤트 후킹과 화면캡처를 활용한 비밀번호 유출 방안을 제시했다. 또한, 국내 유명 인터넷 뱅킹 웹사이트 및 간편결제 서비스에서 비밀번호 유출 공격 가능성을 직접 검사하였으며, 그 결과 PC 운영체제에서 수행되는 가상키보드를 통한 비밀번호 입력방식이 안전하지 않음을 검증하였다. 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.
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Transaction Visibility: Re-Interpretation of Successful SIS Cases, and Implications for E-Commerce
양희동,최인영,Yang, Hee-Dong,Choi, In-Young The Korea Society of Management Information System 2003 Asia Pacific Journal of Information Systems Vol.13 No.1
Firms can create additional customer values by changing the visibility characteristic of business transactions. Both visible and invisible transactions can provide distinctive values to the customers. Visible transactions are those that are open to the customer: the customer can see the detailed logic of the transaction and may manipulate specific variables to control the transaction process. Invisible transactions mean that customers have little ability to control the transaction flow and may even be insulated from seeing the transaction. These invisible transactions will be taken care of only by suppliers, and be regarded as a process performed by suppliers. This paper pursues finding out the contingencies of successful transaction visibility change by answering to the following question; "when does increasing(or decreasing) transaction visibility make sense to customers?" This archival case study finds out that transaction visibility change should fit to the need and capabilities of customers. Increasing transaction visibility makes sense when customers need a certain supplier's performance and have a confidence in the capabilities of executing the performance. By the same token, decreasing transaction visibility makes sense when customers have substantial troubles in conducting their current transaction actions or when customers don't feel it necessary to conduct them separately because they can be derived from other action.
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양희동(Hee-Dong Yang),황선숙(Sun-Suk Hwang),이채영(Chae-Young Lee),박민아(Min-A Park) 한국산업정보학회 2010 한국산업정보학회논문지 Vol.15 No.1
본 연구는 기존의 브랜드 확장 연구를 기반으로 하여 소비자들이 인터넷 브랜드 확장을 평가할 때 영향을 미치는 요인들에 관하여 연구하였다. 특히, 본 연구에서는 온라인 특성을 감안하여 인터넷 벤더에 대한 신뢰라는 변수를 새롭게 도입하였고, 이러한 신뢰가 인터넷 브랜드 확장 평가에 미치는 영향을 알아보았다. 사례 분석 결과 인터넷 브랜드는 확장 제품의 유사성의 영향보다는 소비자 경험에 의해 축적된 인터넷 벤더에 대한 신뢰가 인터넷 브랜드 확장 평가에 긍정적인 영향을 주는 것으로 나타났다. This study investigates the influential factors for online shoppers to accept the brand extension of Internet companies. We specifically attend to the trustworthiness of vendor which has emerged vital for Internet-based commerce. After case analysis, we conclude that vendor’s trustworthiness has more important influence on the successful brand extension on Internet than product similarity does.
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TAM에서의 태도 개념의 측정 개선과 WWW 사용의 설명력
양희동(Hee Dong Yang),강소라(Sora Kang) 한국경영학회 2002 經營學硏究 Vol.31 No.4
The original technology acceptance model (TAM) explains the personal psychological procedures in adopting office automation tools such as spreadsheet and word prosessors. The current study expands the application of TAM into the new computing environment-World Wide Web(WWW) in Internet. We paid special attention to a couple of issues: the operationalization of attitude construct and the comparison of office automation tool and WWW. Aligned with psychology literature. we distinguished between affective and cognitive attitude, and tested the influence of purifying attitude only with the affective measures in TAM. For the sake of diluting the sampling effect, we compared the usage of two different information technologies (spreadsheet and WWW) from the same sample. Using a structural equation modeling, we found that (a) separating the affective and cognitive components of the attitude construct produces a better model fit, and (b) WWW usage has different psychological mechanisms, whereas the past findings of TAM about office automation tool were repeated in our syudy.
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양희동(Hee-dong Yang),김기호(Ki Ho Kim),한현수(Hyun-Soo Han) 한국데이타베이스학회 2012 Journal of information technology applications & m Vol.19 No.4
In this paper, we report the public IT policy case results to restructure informatization level indices for small and medium sized enterprise(SME). The Indices restructuring project was initiated by TIPA with the group of experts during 2011, and the newly amended indices was employed as the formal instrument to measure SME informatization level. The critical drivers to reform the indices Include simplification for more accurate measurement of SME informatization level, reshaping key representative indices of smart IT to better publicize SME’s Interest toward advanced IT, and systematic reconfiguration of performance measures which reflect business performance enhancement effect through IT investment. Indeed, the IT performance indices are unified to incorporate the instrument for general SME informatization level survey and IT adoption subsidy’s effectiveness appraisal. The procedures and details of logic illustrated in this paper provides useful insight for successful implementation of SME informatization as well as for the better policy deployment of IT subsidization for SMEs.
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업무특성에 따른 블로그 사용의도와 업무만족에 관한 연구
양희동(Yang, Hee-Dong),김혜정(Kim, Hye-Jung),강소라(Kang, So-Ra) 한국산학기술학회 2009 한국산학기술학회논문지 Vol.10 No.12
본 연구에서는 과연 근무시간에 ‘블로그’ 사용하는 것이 업무의 성과에 도움을 주는 것일까? 라는 질문에 대 한 해답을 구하고자 하였다. 이를 위해 다음을 분석하였다. 첫째, 블로그 사용의도 즉, 상호작용성, 정보추구성, 오락 추구성 등을 독립변수로, 업무만족도를 종속변수로 설정하고 연구모형을 수립하고 블로그 사용요인과 업무 만족도의 관계를 분석하였다. 둘째, 근무시간에 블로그를 사용하는 이유는 업무특성에 따라 다를 수 있다는 가정 아래 업무특 성 요인을 정형/비정형업무, 개인업무/집단업무, 재석업무/이석업무로 구분지었으며, 각각의 종사자들의 응답을 그룹화 지어 더미변수화 하여 독립변수(블로그 사용요인)와 종속변수(업무만족도)에 조절효과가 있는지 분석하였다. 분석결과, 블로그 사용요인과 업무만족도의 회귀분석 결과 블로그 사용요인 중 상호작용성과 정보추구성은 업무만족 도에 영향을 줄 수 있지만, 오락추구성은 업무만족도에 그다지 영향을 미치지 않는 것으로 분석되었다. 둘째, 업무특 성에 따라 블로그 사용 의도는 다를 수 있다는 가정 아래 업무특성 요인이 블로그 사용의도에 어떠한 영향을 주는지 에 대한 결과는 응답자의 결과 값을 정형/비정형업무, 개인업무/집단업무, 재석업무/이석업무로 구분 지었으며, 회귀분 석을 돌렸지만 이러한 업무특성요인에 따른 블로그 사용의도는 업무만족도에 별다른 영향을 주지 않는 것으로 드러 났다. 이러한 결과를 바탕으로 학문적, 실무적 시사점을 제시하였다. Would it be true that cutting off using BLOG in business hour prevents that job performance decreases? Even though it is right, would the worker have different reason of using BLOG according to job characteristic? This is the purpose of this study to search the answers for the questions above. Under the first hypothesis, (factors having the people use BLOG can influence the job satisfaction), independent variable was set to three factors and define as 'Interoperability', 'Informative', 'Amusement' respectively and dependent variable was set to job satisfaction in this study. The result of analyzing this hypothesis was that two factors('Interoperability', 'Informative') haveinfluence on job satisfaction but 'Amusement' factor hadn't any influence on job satisfaction. For another hypothesis, (the factor having the worker use BLOG would have different influence on job satisfaction according to job characteristic), Job characteristic was set to 3 group (fixed/unfixed, individual/co-operational, static/active) in this study and these variables were converted to dummy variable for validating the moderating effect on both variables(independent/dependent). The result of analyzing this hypothesis was that all dummy variables set to 3 groupshadn't any moderating effect on both variables. Because a dummy variable couldn't be contained the job characteristic exactly.
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