• 한국경영정보학회:학술대회논문집
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• 2007.06a
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• pp.699-704
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• 2007

In this study, we examine why there exist different legal systems in electronic commerce or online financial trading. When a fraud online transaction occurs and the online customer disputes the transaction, the online customer takes responsibility for the proof of her/his argument in many European countries while in the U.S., the burden of proof lays on the firm. This paper analyzes how these two different legal systems exist and how these can be applied to electronic commerce law. In particular, this paper intends to find the optimal level of e-commerce firms' investment on security and analyzes how security investments can be related to firm's profits and consumer's welfare depending on IT infrastructure and social trust environment. More on, this paper can be contributed to provide guidelines for regulatory framework on ecommerce online transactions and discuss social welfare implications.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.25 no.1
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• pp.133-146
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• 2015

Ever sophisticated e-finance fraud techniques have led to an increasing number of reported phishing incidents. Financial authorities, in response, have recommended that we enhance existing Fraud Detection Systems (FDS) of banks and other financial institutions. FDSs are systems designed to prevent e-finance accidents through real-time access and validity checks on client transactions. The effectiveness of an FDS depends largely on how fast it can analyze and detect abnormalities in large amounts of customer transaction data. In this study we detect fraudulent transaction patterns and establish detection rules through e-finance accident data analyses. Abnormalities are flagged by comparing individual client transaction patterns with client profiles, using the ruleset. We propose an effective flagging method that uses decision trees to normalize detection rules. In demonstration, we extracted customer usage patterns, customer profile informations and detection rules from the e-finance accident data of an actual domestic(Korean) bank. We then compared the results of our decision tree-normalized detection rules with the results of a sequential detection and confirmed the efficiency of our methods.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.414-417
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• 2011

2011년 현재 유무선 인터넷을 이용해 VoIP, e-mail 통신을 하며, 금융거래인 은행거래, 주식거래, 안전결제 서비스를 이용하고 있다. 하지만 유무선 인터넷에서 침해사고가 발생하여 VoIP, e-mail이나 은행거래, 주식거래, 안전결제에 취약점 가능성이 있다. 2011년 3월 개인정보보호법 국회통과로 금융거래에서 개인정보를 보호해야 한다. 본 논문에서는 WiBro 인터넷 금융거래에서 VoIP, e-mail이나 은행거래, 주식거래, 안전결제를 할 때, SecuiScan을 이용하여 취약점을 분석한다. 취약점을 분석한 결과, 발견된 취약점을 이용하여 실험실 환경에서 해킹공격을 실시한다. 해킹결과 분석과 침해사고 유형에 따른 보안성 강화를 위한 보안 대책을 제시한다. 본 논문의 연구는 WiBro 인터넷 금융거래 보안성 강화에 기여할 것이다.

• International Journal of Advanced Culture Technology
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• v.11 no.2
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• pp.125-131
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• 2023

OVO is a digital platform that provides simple payments and smart financial services, as well as one of the largest digital payment platforms in Indonesia. It has wide coverage and security when making payments, and supports multiple settlement currencies. The purpose of this study is to explore the history, business model, and future strategic direction of OVO, an Indonesian e-wallet. To date, OVO has built its own mobile payment ecosystem covering a wide range of consumer scenarios including e-commerce, travel, offline shopping and finance. And it supports mobile banking, online banking, debit cards or selected partner merchants. Its three largest transaction categories are in the transportation, retail and e-commerce sectors. With over 110 million consumers and 1.3 million merchant users, it is one of the dominant e-wallets in Indonesian market and has become the country's e-payment market leader. OVO eWallet's 'One Card' model offers convenience and choice for users, thus contributing to the rapid growth of OVO eWallet. And OVO eWallet competes fiercely with other competitors, but OVO eWallet continues to grow in terms of the number of users and market share. Finally, this study analyzes the strategic goals and plans of OVO eWallet, predicts its future direction. OVO eWallet has a huge success, but there are still competition and challenges to face.

• Management Science and Financial Engineering
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• v.16 no.2
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• pp.81-97
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• 2010

Trust is one of the most important aspects of the relationship between retailers and consumers in e-commerce. Users may have concerns about transaction security or personal information leakage when they engage in transactions over the Internet. It can be difficult to attract customers if the retailers or service providers cannot establish trust with their customers. There have been many studies of trust-building mechanisms between customers and e-storefronts. However, little work has been done on identifying the relationships between customer satisfaction, purchase intention, and trust. In addition, trust building occurs in the pre- and post-purchase phases of an e-commerce transaction, as well as gradually over repeated transactions. Thus we distinguish between cue-based trust and experience-based trust. The objective of this study was to explain the impact of trust on customer satisfaction and purchase intention in relation to e-commerce sites from the perspective of a multi-dimensional concept of trust. We surveyed 350 undergraduate students and obtained 331 responses for analysis. The result of our analysis showed that cue-based trust has a positive relationship with trust based on experience. Although the two concepts of trust have positive relationships with satisfaction, the path coefficient of trust based on experience was higher than that of cue-based trust. In addition, the purchase intention mediates the relationship between cue-based trust and experience-based trust.

• Journal of Arbitration Studies
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• v.18 no.2
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• pp.173-199
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• 2008

A letter of credit transaction of the preexistence have been raising one's head fraud charge problem as a result of abusing the principles of independence and abstraction. Every society has certain rules and conventions which it regards as important and most of people in any society. The paper document means a document in a traditional paper form. The eUCP credit must specify the formats in which electronic records are to be presented. In these present times, the issuance of documentary credit are performed by the SWIFT(Society for Worldwide Inter bank Financial Telecommunication) system. The eUCP have been written to allow for presentation completely electronically or for a mixture of paper documents and electronic presentation. Presentation is deemed not to have been made if the Beneficiary's notice is not received. An electronic record that cannot be authenticated is deemed not to have been presented. The e-UCP is the supplement of current existing UCP but is superior to UCP under some circumstances. The document shall include an electronic record. The place for presentation of electronic records means an electronic address. The current e-UCP is not clear on this matter. We have to note followings in case of presenting the documents electronically and applying the e-UCP. There are three principles in the letter of credit transaction, that is to say, independence and abstraction, document dealing, strict compliance. IN the electronic letter of credit, these principles are called as independence and abstraction, electronic document dealing, strict compliance.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.9 no.3
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• pp.117-122
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• 2009

In these days, world economic crisis is getting worse and most of us are having difficulties in handling financial balance. By noticing that credit card is the most important payment method of individuals, we developed e-receipt system, which helps a person easily keep track of credit card spendings by showing purchase and transaction details in real-time. We've used embedded software engineering techniques in developing the e-receipt system. The system we developed here will benefit most of us by preventing over-spending of credit cards and will lead to healthy spending habits.

• Management Science and Financial Engineering
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• v.11 no.3
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• pp.95-107
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• 2005

As online shopping malls have emerged as a substantial shopping channel, they have used various sales promotion strategies to acquire new customers. Most of these strategies have been applied by offline malls for years. One, loss-leader pricing, is a type of promotional pricing in which stores sell well known products below their marginal cost, in order to attract customers and induce them to purchase more goods through impulse buying. This strategy is based on the expectation that customers will factor transaction costs into their purchasing decisions. However, its application to online malls fails to recognize that transaction costs are lower online, and that customers will behave differently as a result. Our study predicts that loss-leader pricing will not work online because online malls entail lower searching and moving costs than offline malls The study examines the effectiveness of loss-leader pricing with empirical data from a survey as well as log data from a Korean online shopping mall. The results show that while loss-leader pricing does attract customers to online shopping malls, it encourages cherry-picking rather than impulse purchases of regular-price goods.

• Journal of the Korea Safety Management & Science
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• v.10 no.4
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• pp.189-198
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• 2008

At present, companies write daily work record or use bar-code in order to collect distribution flow data in real time. However, it needs additional works to check the record or read the bar-code with a scanner. In this case, human error could decrease accuracy of data and it would cause problems in reliability. To solve this problem, RFID (Radio Frequency Identification) is introduced in many automatic recognition sector recently. RFID is a technology that identification data is inserted into micro-mini IC chip and recognize, trace, and manage object, animal, or person using wireless frequency. This is being emerged as the core technology in future ubiquitous environment. This study is intended to suggest RFID application method in franchise business. Traceability and visibility of individual product are supplied based on EPCglobal network. It includes DW system which supplies various assessment data about product in supply chain, financial transaction system which is based on product transaction and position information, and RFID middleware which refines and divides product data from RFID tag. With the suggested application methods, individual product's profile data are supplied in real time and it would boost reliability to customer and make effective cooperation with existing operation systems (SCM, CRM, and e-Business) possible.

• The Journal of Society for e-Business Studies
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• v.26 no.3
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• pp.21-32
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• 2021

Due to the recent development in electronic financial services, transactions of electronic prepayment are rapidly increasing. The increased transactions of electronic prepayment, however, also leads to the increased fraud attempts. It is mainly because electronic prepayment can easily be converted into cash. The objective of this paper is to develop a methodology that can effectively detect fraud transactions in electronic prepayment, by using sequential pattern mining techniques. To validate our approach, experiments on real transaction data were conducted and the applicability of the proposed method was demonstrated. As a result, the accuracy of the proposed method has been 95.6 percent, showing that the proposed method can effectively detect fraud transactions. The proposed method could be used to reduce the damage caused by the fraud attempts of electronic prepayment.