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<p>We examine the impact of data breach announcements on bank loans, deposits, and stock returns. We find that banks experience an outflow of insured deposits in the quarter of the announcement, followed by a decrease in brokered deposits four quarters later. Interestingly, banks increase their lending activity following a data breach announcement, potentially as a strategy to counterbalance the negative news with higher expected income from lending. Additionally, data breach announcements lead to a decline in stock returns the day after the announcement, with a long-term negative impact extending up to three quarters after the event.</p>

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Data Breach Announcement Effect on Bank Loans, Deposits, and Stock Performance

  • 期刊论文

  • 发表日期：

    2025年4月21日

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  • Isarin Durongkadej,
  • Heng Emily Wang

摘要

We examine the impact of data breach announcements on bank loans, deposits, and stock returns. We find that banks experience an outflow of insured deposits in the quarter of the announcement, followed by a decrease in brokered deposits four quarters later. Interestingly, banks increase their lending activity following a data breach announcement, potentially as a strategy to counterbalance the negative news with higher expected income from lending. Additionally, data breach announcements lead to a decline in stock returns the day after the announcement, with a long-term negative impact extending up to three quarters after the event.