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Last updated 15 November 2026 Search Türkçe
Security

Kiteworks urges customers to take servers offline after attack warning

The company says the shutdown is precautionary, with no known compromise.

Updated 28 September 2026

After receiving threat intelligence about a possible attack on customer systems, Kiteworks advised users worldwide to take their servers offline for six hours on Saturday. In Central Europe, the requested shutdown ran from 4:00 a.m. to 10:00 a.m. on September 26. Kiteworks says it knows of no system compromise and describes the shutdown as a precaution rather than a response to a confirmed breach. The warning addresses possible zero-day attacks, but no unknown flaw has been confirmed as discovered or exploited; Kiteworks says release 9.5.1 fixes all known vulnerabilities. The company has not identified the law-enforcement agency behind the warning or a suspected attacker.

Why it matters

For customers, the advisory turns an unconfirmed threat into a time-limited interruption, not evidence that an attack has succeeded. With neither an exploited zero-day nor a suspected attacker confirmed, the warning identifies a risk without explaining who may be behind it or what flaw could be used.

Sources · 2