City of Leavenworth (Kansas)
November 19, 2025
•[ cyberattack, network outage, ransomware ]
DataBreaches reported that Leavenworth, Kansas officials said a cyberattack caused a network outage on November 19, 2025 after computer and phone systems began failing late that morning. The city brought in outside IT experts and later confirmed on November 25 that the disruption stemmed from a cyberattack on the municipal internal network. As of the December 8 report, impacts were still ongoing for invoicing, permitting, and hiring systems, while emergency services were reported unaffected, and no ransomware or extortion group had publicly claimed responsibility.
