Kathrin Zimmer has a diploma in Mathematics. She is participating in the project “Confidential Business Transactions on the Internet”. In this context her research focuses on Electronic Commerce. Abstract We are presenting a project supported by the DFN Verein, a registered association, and the German government (BMBF) which is called “Confidential Business Transactions on the Internet”. In thi...

Money laundering is among the most common financial crimes that negatively affect countries' economies and hurt their social and political relations. With the increasing growth of e-banking and the increase in electronic financial transactions, the identification of money laundering methods and behaviors has become more complex; because money launderers, by accessing the Internet and using new ...

The Web frequently suffers from failures which affect the performance and consistency of applications run over it. An important fault-tolerance technique is the use of atomic transactions for controlling operations on services. While it has been possible to make server-side Web applications transactional, browsers typically did not possess such facilities. However, with the advent of Java it is...

Existing payment smartcards developed for traditional point-of-sale transactions are being considered for use in Internet transactions. Such solutions have been suggested as alternatives to using payment protocols more specifically designed for Internet payments (such as SET [6]) but often lacking smartcard support. In this paper, we analyze EMV’96 [5], a representative example of an existing p...

The Diagnostic and Statistical Manual of Mental Disorder, Fifth Edition (DSM-5), lists concealment as one of the symptoms of a gambling disorder. However, some transactions are more likely to leave permanent records of gambling transactions (credit, consumer loyalty schemes) than others (cash, Internet cash, Internet cafes, prepaid phones). An online survey of 815 participants recruited through...

This study investigates whether the information content of insider transactions, with a focus on sell transactions, is different for high growth, high volatility Internet-based firms. Prior research on more “traditional” firms has found a small, but significant negative abnormal return with insider sells, which points to an association of insider sells with negative information about the firm b...

By secure electronic transaction (SET) protocol, business and customers can construct different electronic commerce models on the Internet. In this paper, we propose a method based on Petri net models and techniques of software engineering to detect unusual electronic commerce transactions. Users can construct all electronic commerce transactions of business and customers by SET. Because of fea...