2026 Denmark School District — INC Ransom, ~70GB (Wisconsin)
Data compromised
Unknown; ~70GB claimed exfiltrated
Technical writeup
Denmark School District in Wisconsin suffered cyber incident late Jan 2026. INC Ransom claimed responsibility Mar 1; alleged 70GB exfiltration. Five-day internet blackout; district reverted to paper-based instruction for ~1,500 students. District has not publicly confirmed attack details.
Root cause
INC Ransom ransomware