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data leakage

/ˈdeɪtə ˈliːdʒ/ or /ˈdeɪtə ˈleɪkdʒ/ · da·ta·leak·age
noun
  1. The unauthorized disclosure or exposure of sensitive or confidential data, often due to a security breach or system failure. The company suffered a major data leakage when an employee's laptop was stolen, containing sensitive customer information.
  2. The loss of data due to a technical issue or system failure, resulting in the exposure of sensitive or confidential information. The data leakage caused by the server crash resulted in the exposure of thousands of customer records.
Did you know? Data leakage is often considered a serious security threat, as it can result in significant financial losses, reputational damage, and even legal consequences for organizations that fail to protect sensitive data.
Written by Lexi Wordsworth, Dictionary Editor 1 lookups Added Jul 26, 2026