DisclosureLens
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Duo County Telephone Cooperative Corporation Inc

bd_1f4bbfe1afc888a5 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

May 15, 2025

To disclose

—

Affected · nationwide

42,5181,023 in this filing

Linked

3 filings

Confidence

95%
Full breach record for Duo County Telephone Cooperative Corporation Inc →

Duo County Telephone Cooperative Corporation Inc and Cumberland Cellular LLC reported a data breach to the Indiana Attorney General. The breach occurred on 2025-02-13 and was reported on 2025-05-15. 1,023 Indiana residents were affected. 42,518 individuals affected in total.

Incident timeline

Feb 13, 2025

Begins

May 15, 2025

Filed

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Filing propagation · 3 filings · 3 states

View merged incident ↗
New Hampshire State AGMay 15 · first
Maine State AGMay 15 · first
Indiana State AGMay 15 · first · this page

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.