Winona County — Cyber Attacks, Breaches & Threat Activity

Threat entity extracted from intelligence sources

Frequency
16
occurrences
First Seen
January 23, 2026
Last Seen
May 7, 2026

Winona County is a organization tracked across 7 threat clusters and 16 intelligence report mentions on ThreatCluster. First observed January 23, 2026; most recent activity May 7, 2026.

Related Threat Clusters

  • Google API Key Vulnerability Exposes Gemini AI Access in Android Apps

    A vulnerability in Google's API key system has allowed unauthorized access to the Gemini AI platform from numerous Android applications. CloudSEK identified that existing API keys, meant for public services,…

    2 articles · Updated April 10, 2026
  • Spring Lake Park Schools Closed Due to Suspected Ransomware Attack

    On April 13, 2026, Spring Lake Park Schools in Minnesota canceled all classes and activities after detecting unauthorized access to its computer systems, suspected to be a ransomware attack. The district's technology…

    8 articles · Updated April 13, 2026
  • Minnesota National Guard Responds to Winona County Cyberattack

    Winona County, Minnesota, experienced a ransomware attack on April 6, 2026, disrupting critical systems and digital services. Governor Tim Walz issued an emergency order to deploy the Minnesota National Guard's cyber…

    4 articles · Updated May 7, 2026
  • Winona County Faces Ransomware Attack, Engages Cybersecurity Experts

    Winona County is responding to a ransomware attack with the assistance of cybersecurity and data forensic experts. The county administration is working closely with law enforcement to address the incident and ensure the…

    5 articles · Updated February 12, 2026
  • Minnesota National Guard Activated After Winona County Cyberattack

    A cyberattack on Winona County, Minnesota, began on April 6, 2026, and continued into April 7, disrupting critical municipal and emergency services. Governor Tim Walz authorized the Minnesota National Guard to assist in…

    3 articles · Updated April 8, 2026
  • Ransomware Attack Affects Winona County Computer Network

    Winona County has reported a ransomware attack that impacted its computer network. The County Administrator, Maureen Holte, confirmed the incident and stated that they have identified and responded to the attack.…

    2 articles · Updated January 27, 2026
  • Winona County Faces Ransomware Attack on Computer Network

    Winona County has identified a ransomware incident impacting its computer network. The county is collaborating with third-party cybersecurity and data forensics experts, as well as local, state, and federal law…

    2 articles · Updated January 24, 2026

Recent Intelligence Reports

  • Press Releases — mn.gov · May 7, 2026
  • Minnesota National Guard Winona County Cyberattack — www.cbsnews.com · May 7, 2026
  • When Ransomware Hits, Governors Are Calling the National Guard — Fdd · May 6, 2026
  • Minnesota Winona County Cyberattack Emergency Order — statescoop.com · May 4, 2026
  • Spring Lake Park schools closed after ransomware attack — Aol · April 13, 2026
  • Android API exposure, Acrobat Reader zero-day, Bitcoin Depot cyberattack — Linkedin · April 10, 2026
  • National Guard to assist Winona County following cyberattack — Kttc · April 8, 2026
  • Gov. Tim Walz Deploys National Guard After Winona Cyberattack Disrupts Services — Thecyberexpress · April 8, 2026

CVSS v3.1 Breakdown