Journal Article

The Association Between the Disclosure and the Realization of Information Security Risk Factors

Kannan, Karthik N., Ulmer, Jackie Rees, Wang, Tawei

2013

Overview

Firms often disclose information security risk factors in public filings such as 10-K reports. The internal information associated with disclosures may be positive or negative. In this paper, we evaluate how the nature of the disclosed security risk factors, believed to represent the firm's internal information regarding information security, is associated with future breach announcements reported in the media. For this purpose, we build a decision tree model, which classifies the occurrence of future security breaches based on the textual contents of the disclosed security risk factors. The model is able to accurately associate disclosure characteristics with breach announcements about 77% of the time. We further explore the contents of the security risk factors using text-mining techniques to provide a richer interpretation of the results. The results show that the disclosed security risk factors with risk-mitigation themes are less likely to be related to future breach announcements. We also investigate how the market interprets the nature of information security risk factors in annual reports. We find that the market reaction following the security breach announcement is different depending on the nature of the preceding disclosure. Thus, our paper contributes to the literature in information security and sheds light on how market participants can better interpret security risk factors disclosed in financial reports at the time when financial reports are released.

• Publisher: INFORMS,The Institute for Operations Research and the Management Sciences (INFORMS),Institute for Operations Research and the Management Sciences
• Subject: Analysis / Annual reports / Business structures / Computer services industry / Correlation analysis / Cybersecurity / Data integrity / Data security / Decision trees / Disclosure / Financial securities / Information management / information security / information security incident / Information storage and retrieval systems / Legal fees / Litigation / Operational risk / Predisposing factors / risk factor / Risk factors / Securities management / Security management / Studies / text mining