Kiteworks is telling customers to shut down their servers immediately, citing a credible threat of an imminent cyberattack.
The company, which lets businesses move large datasets across the internet, said law enforcement passed along the warning directly. Kiteworks has not detailed which agency contacted it, what systems are at risk, or how it verified the threat's credibility. The request applies broadly: customers are being told to take servers offline now, not after further diagnosis. It's a rare step for a vendor to ask its entire customer base to go dark rather than isolate one confirmed intrusion.
File-transfer software has become one of the more reliable ways for attackers to hit many companies at once, since compromising a single shared platform can expose every customer using it. Past incidents involving similar large-file-transfer tools have led to sprawling, multi-company fallout rather than one isolated victim. A blanket shutdown request suggests Kiteworks would rather eat the disruption than gamble on the threat being overstated.
Whether this becomes another entry in that pattern or a false alarm depends on details the company still hasn't shared.