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Journal Articles

The Informativeness of Sentiment Types in Risk Factor Disclosures: Evidence from Firms with Cybersecurity Breaches

Ronald C. W. Tsang, Amelia A. Baldwin, Joseph F. Hair, Jr., Ermanno Affuso, Kyre Dane Lahtinen
Journal: Journal of Information Systems
Journal of Information Systems (2023) 37 (3): 157–190.
https://doi.org/10.2308/ISYS-2022-014
Published: 01 October 2023
... methods that advance empirical accounting literature. Data Availability: Data are available from the public sources cited in the text. cybersecurity market reactions cumulative abnormal returns trading volume sentiment analysis textual analysis risk factors management’s discussion...
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Journal Articles

What Phishing E-mails Reveal: An Exploratory Analysis of Phishing Attempts Using Text Analysis

Daniel E. O'Leary
Journal: Journal of Information Systems
Journal of Information Systems (2019) 33 (3): 285–307.
https://doi.org/10.2308/isys-52481
Published: 01 September 2019
... to thank Zack Ament, Scott Geyman, and Theo Nguyen for helping to put together the databases used in this paper. Editor's note: Accepted by Diane J. Janvrin. April 2018 May 2019 2019 phishing sentiment analysis text analysis Python NLTK LIWC neural networks...
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