Great Plains Manufacturing, Inc
bd_3f1bb21b623b9170 · schema v1 · pii pii-v1
Full breach record for Great Plains Manufacturing, Inc →Great Plains Manufacturing, Inc. notified Montana residents of a security incident involving unauthorized access to its network between September 28 and October 11, 2021. The breach exposed names, SSNs, dates of birth, and health insurance information. The company restored operations and provided one year of complimentary identity monitoring through Kroll.
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Incident timeline
Sep 28, 2021
Begins
Oct 11, 2021
Discovered
Dec 1, 2021
Filed
vs. sector median
3 wks faster
Linked disclosures
Why this link?Regulatory filings (6) · sorted by filing gap
- Massachusetts State AGbd_130d9e011375757d2021-12-01Verified
- HHS OCRbd_bc9889b99a7523bf2021-12-01Verified
- Indiana State AGbd_2a6a3d3c277853f02022-04-15 · +135dVerified
- Maine State AGbd_cd395951b6264cf82022-04-15 · +135dVerified
Show 2 more filings ↓Show fewer ↑up to 334d gap
- New Hampshire State AGbd_e53c8ce03d86bfbb2022-04-15 · +135dVerified
- Illinois State AGbd_2d4bcb6f022f65e12021-01-01 · +334dCandidate
Filing propagation · 7 filings · 7 states
View merged incident ↗Pattern: first filing Jan 1 (IL), last Apr 15 (NH) — a 469-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.