JSAI Technical Report, Type 2 SIG
Online ISSN : 2436-5556
A Study on the Impact of Information Security Incidents on Stocks of the U.S. Market
Jiansen ZHAOHiroshi TAKAHASHI
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RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS

2022 Volume 2022 Issue BI-020 Pages 15-

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Abstract

In this study, we analyzed the impact of news related to information security incidentson the stock prices of companies listed on the NASDAQ market in the United States. Theanalysis data was based on news that was announced to the market participants by ReutersNews. For the analysis of news related to information security incidents, we used the BERTmodel of text analysis. In this study, we used the event study method to compare and analyzethe impact on stock prices in multiple periods.

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