JSAI Technical Report, Type 2 SIG
Online ISSN : 2436-5556
The information security accident about the impact and relevance to the corporate value
Sachiko MIYAUCHIHiroshi TAKAHASHI
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RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS

2020 Volume 2020 Issue BI-015 Pages 12-

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Abstract

Information security incidents could be one of the most concerns for corporate activities.Considering these factors, this study attempts to clarify the relationship between information securityincidents and stock market reactions. In this analysis, we analyze the stock market in Japan from March2005 to January 2015. As a result of intensive analyses, we confirm the following results; (1) informationsecurity incidents have a negative impact on corporate values, (2) information security incidents withsignificant impact have long-term negative effects on stock market.

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