Public Disclosure of Information Security Breach Incidents: Short-term Stock Market Reaction on Indian Listed Firms

A Dataset Containing S&P500 Information Security Breaches and Related Financial Firm Performances

“…This study covers security breaches spanning between 2020 and 2023 to capture recent data and ensure relevance to current trends and developments, generating current and valuable insights. After careful examination of prior research, the online search to identify information security breaches used the keywords "information security breach", "cyber security breach", "cyber a ack" and "data breach" (Campbell et al, 2003;Gordon, Loeb & Zhou, 2011;Paul & Das, 2024). Based on these criteria, 205 S&P500 companies that experienced a disclosed information security breach between 2020 and 2023 were initially identified.…”