DisclosureLens
HackingFinancial ServicesFinanceCustomer Data InvolvedIdentity (basic)Government IDHigh

Arrowhead Regional Computing Consortium

bd_8d70dd619f4f18a6 · schema v1 · pii pii-v1

Severity

High

Discovered

Dec 7, 2023

Filed

Jan 11, 2024

To disclose

5 weeks

Affected · nationwide

65,01025 in this filing

Linked

4 filings

Confidence

75%
Full breach record for Arrowhead Regional Computing Consortium2 incidents on file

Arrowhead Regional Computing Consortium (ARCC) reported a data breach affecting 65,010 individuals, including 25 Maine residents. The breach, which occurred on February 6, 2023, and was discovered on December 7, 2023, was the result of an external system breach (hacking). The compromised information includes names and Social Security numbers. ARCC began notifying affected individuals on January 11, 2024, and is offering 12 months of identity theft protection services through IDX CyberScan.

Maine clockDiscovered Dec 7, 2023Filed with AG Jan 11, 202435d ME AG >30d5 weeks discovery → filing
AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 304 days
discovery → filing · 5 weeks / 35 days

Feb 6, 2023

Begins

Dec 7, 2023

Discovered

Jan 11, 2024

Filed

vs. sector median

4 wks faster

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Filing propagation · 4 filings · 4 states

View merged incident ↗
Indiana State AGJan 11 · first
Vermont State AGJan 11 · first
Maine State AGJan 11 · first · this page

Pattern: first filing Jan 11 (IN), last Jan 17 (NH) — a 6-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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.