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● Covered by 2 sources · 2 reportsMedium impact1 negative1 neutral

Kiteworks Urges Customers to Shut Down Servers Due to Imminent Cyberattack Threat

🔄 Updated 2h ago — new reporting from The Record
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Key points

  • Kiteworks alerted customers about an imminent cyberattack threat.
  • Law enforcement provided credible threat intelligence.
  • Customers were advised to shut down systems as a precaution.
  • The threat may involve unknown zero-day vulnerabilities.
  • Customers were advised to shut down systems during a six-hour window on Saturday.
  • Frank Balonis, CISO at Kiteworks, confirmed the threat intelligence.
  • All known vulnerabilities are addressed in Kiteworks' current release, 9.5.1.

Precautionary Shutdown Advised

Kiteworks, a technology company specializing in large file transfers, has urged its customers to shut down their systems. This recommendation follows credible threat intelligence received from law enforcement, indicating a potential cyberattack targeting Kiteworks systems for customers.

Imminent Threat of Zero-Day Exploits

The company's chief information security officer, Frank Balonis, stated that the advisory is preventative and not a response to a confirmed breach. Kiteworks expressed concern about the exploitation of currently unknown vulnerabilities, known as zero-day flaws, which could be exploited before patches are available.

Customer Notification and Recommendations

Kiteworks notified customers directly, recommending a precautionary shutdown window. The company also stated that all known vulnerabilities have been fixed in its latest software release, version 9.5.1, which it advises all customers to use. The specific law enforcement agency or hacking group involved was not disclosed.

Potential Impact

The exact number of affected customers is unclear, but Kiteworks' website indicates thousands of clients across various sectors including healthcare, technology, education, automotive, and government. The shutdown recommendation aims to protect these customers from potential improper access.

Updates

🕒 2026-09-25 · new reporting from The Record
  • Customers were advised to shut down systems during a six-hour window on Saturday.
  • Frank Balonis, CISO at Kiteworks, confirmed the threat intelligence.
  • All known vulnerabilities are addressed in Kiteworks' current release, 9.5.1.

✨ This summary was generated by AI from the outlets' reporting listed below. It is not independently verified and may contain errors — check the original sources. How BrevFeed works →

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How outlets covered it

Kiteworks has urged its customers to temporarily shut down their systems over a weekend after receiving credible threat intelligence from federal agencies about potential cyberattacks targeting some Kiteworks systems. This advisory is a precautionary measure, as the company is not aware of any confirmed compromise, but it suggests a significant, unpatched vulnerability may exist.

Kiteworks advised its customers to shut down their systems after receiving credible threat intelligence from law enforcement about an imminent cyberattack. The company recommended a precautionary shutdown to protect against potential zero-day exploits, though no compromise has been confirmed.