博碩士論文 105430010 詳細資訊




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姓名 莊長晉(Chang-Chin Chuang)  查詢紙本館藏   畢業系所 會計研究所
論文名稱 資訊安全事件與公司長短期績效-以臺灣資訊 安全事件為例
(The Impact of Information Security Breaches on Short-term and Long-term Firm Performance-Evidence from Information Security Breaches in Taiwan)
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檔案 [Endnote RIS 格式]    [Bibtex 格式]    [相關文章]   [文章引用]   [完整記錄]   [館藏目錄]   至系統瀏覽論文 (2023-7-25以後開放)
摘要(中) 資訊科技的進步與發展改變了企業的營運模式也創造了企業的新獲利模式。然而,企業也面臨了保護資訊安全的威脅與挑戰。2016年我國銀行業ATM盜領事件以及2017年勒索病毒的攻擊,震驚全臺灣。駭客入侵、個資外洩頻繁登上媒體版面,也讓臺灣企業及政府不得不開始重視資訊安全。本研究蒐集2006年至2017年臺灣資訊安全事件,分析其對臺灣上市櫃企業市場績效及會計績效之影響。本研究實證結果發現:在市場績效方面,考量媒體報導的因素後,有報導或報導長度大於三天且發生資訊安全事件的公司相對於沒有發生資訊安全事件的配對公司短期累積異常報酬顯著較低。而在會計績效方面,發生資訊安全事件的公司相對於沒有發生資訊安全事件的配對公司當年以及次年資產報酬率(ROA)顯著較低。因此,本研究認為資訊安全事件確實為臺灣企業產生負面之影響,本研究期望臺灣企業能正視資訊安全的重要性,投入資訊安全維護。
摘要(英) The advance and development of information technology has changed the business model of the company and also created a new profit model for the company. However, companies also face the threat and challenge of protecting information security. In 2016, the bank’s ATM theft in Taiwan and the Ransomware Attacks in 2017 shocked Taiwan. As we saw considerable news about Hacker invasions and data losses recently, Taiwanese companies and governments have started paying attention to information security. This study collects information security breaches in Taiwan from 2006 to 2017, and analyzes its impact on market performance and accounting performance of Taiwan listed companies. The empirical results of this study show that: in terms of market performance, considering the factor of media coverage, if the information security breaches were reported or reported more than three days, the company′s short-term cumulative abnormal returns relative to those without information security incidents are significantly lower. In terms of accounting performance, the return on assets (ROA) of the companies that have information security breaches are significantly lower in the current and following year than the companies that do not have information security breaches. Therefore, this study believes that information security breaches do have a negative impact on Taiwanese companies. This study hopes that Taiwanese companies can put emphasis on the importance of information security and invest in information security maintenance.
關鍵字(中) ★ 資訊安全
★ 事件研究法
★ 市場績效
★ 會計績效
關鍵字(英) ★ information security
★ event study
★ market performance
★ accounting performance
論文目次 中文摘要………………....…………………………………………………………………..i
英文摘要………………………………………………………………………….………....ii
壹、 緒論 1
貳、 文獻回顧與假說發展 6
2-1 資訊科技與資訊安全 6
2-2 市場績效與資訊安全事件 7
2-3 會計績效與資訊安全事件 11
參、 研究設計 13
3-1研究期間、樣本選取與資料來源 13
3-2研究模型與主要變數 17
肆、 實證結果與分析 22
4-1敘述性統計與相關係數 22
4-2迴歸分析結果 25
4-3穩健性測試 30
伍、 研究結論與建議 33
參考文獻………………………………………………………………………….……...…37
附錄…………………………………………………………………………….….………..43
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指導教授 顏如君(Ju-Chun Yen) 審核日期 2018-7-25
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