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data misuse

/ˈdeɪtə ˈmɪsjuːz/ · da·ta mis·use
noun
  1. Improper, unauthorized, or unethical use of data, especially personal or sensitive information. The company faced a lawsuit after the data misuse of its customers’ credit‑card details.
  2. A breach of data‑handling policies that results in privacy violations or security risks. Data misuse can occur when employees share confidential files with external partners without clearance.
Did you know? The phrase “data misuse” entered mainstream policy discourse after the EU’s 2018 GDPR, which explicitly requires organisations to prevent misuse of personal data.
Written by Lexi Wordsworth, Dictionary Editor 1 lookups Added Jul 19, 2026