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Kiteworks Warns of Imminent Cyberattack
25 Sep
Summary
- Kiteworks advised customers to shut down systems due to threat intelligence.
- Company warns of potential zero-day attacks on its file transfer tools.
- This follows a past vulnerability exploit in late 2021 under Accellion.

Kiteworks has alerted its customers to a credible threat of cyberattacks, advising an immediate system shutdown. The company received information from law enforcement about a potential targeting of its systems. As a precautionary measure, Kiteworks recommended customers implement a shutdown window while investigations proceed with law enforcement partners.
The advisory is preventative, as Kiteworks is not aware of any current system compromises. The company highlighted concerns over the exploitation of unknown vulnerabilities, referred to as zero-day flaws. Kiteworks has released its latest software version, 9.5.1, which addresses all known vulnerabilities, and urges customers to upgrade.
This situation evokes a past incident in late 2021 when Kiteworks, then operating as Accellion, experienced a vulnerability that led to a mass hack. An extortion gang exploited this flaw, stealing data from hundreds of organizations. The hackers then attempted to ransom the stolen information, threatening public release.