2026 Missoula County Public Schools: Frontline breach; about 6,000 staff SSNs
Data compromised
About 6,000 current and former employees and job applicants: Social Security numbers, email addresses and home addresses. Student records were not mentioned in the district's notice.
Technical writeup
Source: KPAX, 10 November 2026. KPAX quoted an earlier Frontline figure of 1.3 million; later state filings put the vendor total at 3,085,266.
Root cause
Missoula County Public Schools was notified on 26 October 2026 that Frontline Education, a third-party platform the district uses, had a security incident. The district says none of its own systems or networks were accessed. This is part of the wider Frontline Education breach, which affected 3,085,266 people nationwide, and the 6,000 Missoula staff are included in that total.