State AGConfirmed5 filings · 5 statesLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedhigh sensitivity
Merged incident · 5 filings
Great Northern Corporation — August 2020 breach
Clustered 5 filings across 5 jurisdictions · filing window Feb 9, 2021 → Feb 18, 2021 (dated filings only). View entity profile → Other incidents for this victim →
⚠ 2 cross-filing discrepancies →Merge100%
incident inc_d5834758f71e40c5 · merged by human · confidence 100%
Confirmed breach. Merged as one breach: 5 regulatory filings. The filings describe a ransomware attack. Intrusion Aug 26, 2020, discovered Sep 5, 2020. 5,097 individuals reported across the linked filings. Data reported: Government ID, Identity (basic), and Financial account. Notifications rolled out on a 9-day schedule across 4 dated filings beginning Feb 9, 2021. Each member filing remains the legal record for its jurisdiction.
Litigation Timing
Discovery variance
107days
Range of discovered_at dates across filings
Filing span
9days
Time between earliest and latest filing
Not recorded for this incident
Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster.
Regulatory clocksMassachusetts✓ MA credit monitoring dueFull clock table in Litigation Timeline
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