Expert Witness Markus Jakobsson, Hossein Siadati and Mayank Dhiman describe a common but poorly known type of fraud – so-called liar buyer fraud – and explain why traditional anti-fraud technology has failed to curb this problem. They then introduce a counter-intuitive technique based on user interface modification to address liar-buyer fraud, and report result of experiments supporting that their technique has the potential of dramatically reducing fraud losses. They used a combination of role playing and questionnaires to determine the behavior and opinions of about 1700 subjects, and found that their proposed technique results in a statistically significant reduction of fraud rates for both men and women in an experimental setting. Their approach has not yet been tested on real e-commerce traffic, but appears sufficiently promising to do that. Their findings also support that men are more willing to lie and defraud than women are; but maybe more interestingly, their analysis shows that the technique they introduce make men as honest as women.
- Expert Background:
Dr. Markus Jakobsson has more than 20 years of experience as a security researcher and scientist studying phishing, crimeware and mobile security at organizations. He is the Co-founder of three digital security startups spanning email fraud prevention, user authentication, mobile malware detection and secure user messaging. Dr. Jakobsson has an extensive background in electronic payments and transactions, contributed to the very early Bluetooth specs, and published the first analysis of Bluetooth security vulnerabilities. Along with being the named inventor on over one hundred issued and pending U.S. patents, Dr. Jakobsson is currently one of the most cited authors in computer science as determined by CiteSeer. He has experience working as an expert witness in patent litigation cases, has testified, been deposed and has written expert reports for cases involving major industry players.