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Dropbox accounts breached through Lenovo email verification flaw

September 2, 2026 · BleepingComputer · Severity: HIGH

Dropbox is warning some users that an unauthorized party accessed their accounts by exploiting a flaw in Lenovo's email verification process to register fraudulent Lenovo IDs.

Key Takeaways

  • A flaw in Lenovo's email verification allowed attackers to access Dropbox accounts.
  • Dropbox warns users their accounts were breached via fraudulent Lenovo IDs.
  • The unauthorized access exploited Lenovo's verification process, not Dropbox directly.
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