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电子商务系列研讨会(21): Coping with Digital Extortion: an Experimental Study of Directive Incentive and Social Norms

为进一步深入学术交流,增进学术氛围,应电子商务系邀请,美国德州大学阿灵顿分校汪静国教授将于2019年7月5日来我院进行学术交流并作学术报告。汪教授将结合其最新研究做题为“Coping with Digital Extortion: an Experimental Study of Directive Incentive and Social Norms”的报告。欢迎感兴趣的教师及研究生参加。
 
人:汪静国
会议时间:2019年7月5日(周五)15:30-17:00
会议地点:劝学楼444
 
【报告人简介】
汪静国博士是美国德克萨斯大学阿灵顿商学院信息系统教授。曾于复旦大学获得计算机科学学士,在纽约州立大学布法罗获得运筹学硕士以及管理科学和系统博士。研究领域包括信息安全、网络犯罪和决策支持。其相关研究成果发表在MIS Quarterly, Information Systems Research, Journal of Management Information Systems, Journal of the Association for Information Systems, Decision Support Systems等国际重要期刊等。
 
Abstract
Coping with Digital Extortion: an Experimental Study of Directive Incentive and Social Norms Abstract
 
Digital extortion emerges as one of the most significant threats to organizations that increasingly rely on information technologies for their business and operations. We employ a combination of game theory, human-subject experimentation, and behavioral economics modeling to study the interplay between an attacker and a defender community. We focus on two potential solutions to incentivize the defenders’ engagement of investing in security and/or refusal to pay ransoms to mitigate the threat. The first one is a direct incentive intervention as a penalty to pay a ransom. We find that it does not effectively decrease the defenders’ payment rates because the attacker strategically reduces his ransoms to compensate. Neither does it increase investment rates on average significantly. The second one, an indirect manipulation of social interactions in the form of enabling communication, does result in higher investment rates. We further develop a structural model based on quantal response equilibrium framework. The model is designed to isolate the impacts of strategic interactions, the impacts of social norms in investment and refusal to pay, and noisy decision-making behaviors. Model estimates confirm that social norms are indeed important in driving the defenders’ response to digital extortion and their impacts can be manipulated. Analyses of communication messages of the defenders reveal that discussing mitigating strategies amplifies the influence of social norms. This study highlights the need of investigating invention strategies based on social norms, where the attacker has less power to counteract. It illustrates the challenges and offers potential approaches in fighting against digital extortion for policy makers.
 
 
撰稿人: 宋晓龙                                审核:田甜