Behaviors of Online Financial Institutions Confronted with Phishing: A Game Theoretic Analysis
Ding Zheng-ping · Dianzi Ke-ji Daxue xuebao · 2009
Phishing is an online fraud emerging in recent years. It refers to luring techniques used by identity thieves (Phishers) to fish for personal information in a pond of unsuspecting Internet users. It is a general term for the creation and use by Phishers of e-mails and websites that have been designed to look like they come from well-known, legitimate and trusted websites. Such fraud behavior may cause a great loss for the internet users, especially users of using financial services. Meanwhile, it may also damage the online financial institutions. How should financial institutions respond to the threat from the phishers? Based on the analysis of profit and loss function of Phishers and online financial institutions, a two-phase dynamic game model is established to obtain the optimal strategy for online financial institutions against Phishing by way of Nash-Equilibrium analysis.