Presentation 2022-03-07
Proposal and consideration of internal fraud model by signaling game
Junki Yuasa, Hiroki Kashiwazaki,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The damage of information security incidents caused by internal fraud is great, and it is necessary for organizations to prevent it. Also, it is effective to observe the behavior that leads to the motivation of internal fraud and the signs of fraud in order to consider countermeasures at an early stage. However, it is difficult to determine what kind of response the administrator should take to the employee after observing the behavior. In this study, incomplete information using a signaling game, which is a dynamic game with two non-cooperative players, we model the interaction between an employee and an administrator. We also clarify the perfect Bayesian equilibrium point and its conditions. These equilibrium points are elaborated and neither employees nor managers choose to unilaterally change their strategies. Finally, a case study is conducted to verify the usefulness of the game model.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) internal fraud / game theory / signaling game
Paper # ICSS2021-62
Date of Issue 2022-02-28 (ICSS)

Conference Information
Committee ICSS / IPSJ-SPT
Conference Date 2022/3/7(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) Security, Trust, etc.
Chair Katsunari Yoshioka(Yokohama National Univ.)
Vice Chair Kazunori Kamiya(NTT) / Takahiro Kasama(NICT)
Secretary Kazunori Kamiya(KDDI labs.) / Takahiro Kasama(Okayama Univ.)
Assistant Keisuke Kito(Mitsubishi Electric) / Takeshi Sugawara(Univ. of Electro-Comm.)

Paper Information
Registration To Technical Committee on Information and Communication System Security / Special Interest Group on Security Psychology and Trust
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Proposal and consideration of internal fraud model by signaling game
Sub Title (in English)
Keyword(1) internal fraud
Keyword(2) game theory
Keyword(3) signaling game
1st Author's Name Junki Yuasa
1st Author's Affiliation Nagoya University(Nagoya Univ.)
2nd Author's Name Hiroki Kashiwazaki
2nd Author's Affiliation National Institute of Informatics(NII)
Date 2022-03-07
Paper # ICSS2021-62
Volume (vol) vol.121
Number (no) ICSS-410
Page pp.pp.20-25(ICSS),
#Pages 6
Date of Issue 2022-02-28 (ICSS)