Dissertation/Thesis Abstract

The impact of data breaches on market value of firms in the E-Commerce marketplace
by Washington, Kevin D., D.B.A., Capella University, 2016, 84; 10102712
Abstract (Summary)

Using a sample of information and security data breaches the present research examines the public announcement impact between Brick and Mortar firms and E-Commerce firms. The dissertation initially analyzes the effects of publicly announced information and security breaches on abnormal stock returns, abnormal trading volume, and firm risk. The dissertation then analyzes differential impact between Brick and Mortar firms and E-Commerce firm’s market value following a data breach. Using a sample size of 38 information security breaches, E-Commerce firms resulted in more negative abnormal stock returns than Brick and Mortar firms. While data breach announcements did not significantly impact retail firms as a whole, they did have a significant impact when broken into the subsets. E-Commerce firms that announced an information security breach experienced abnormal trading volume.

Indexing (document details)
Advisor: Borchers, Andrew
Commitee: Bouvin, David, McLaughlin, Gregory, Williams, Barbara Butts
School: Capella University
Department: Business and Technology
School Location: United States -- Minnesota
Source: DAI-A 77/09(E), Dissertation Abstracts International
Source Type: DISSERTATION
Subjects: Business administration, Information Technology
Keywords: Abnormal returns, Capm, Data breaches, E-commerce, Event study, Information security
Publication Number: 10102712
ISBN: 9781339663760
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