UnknownTechnologyEducationInformationCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Arrowhead Regional Computing Consortium

bd_6efd02a88da5b618 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Jan 11, 2023

To disclose

—

Affected

157state residents only

Confidence

67%

Full breach record for Arrowhead Regional Computing Consortium →2 incidents on file

Arrowhead Regional Computing Consortium (ARCC) issued a consumer notification letter dated October 18, 2025, regarding a cybersecurity incident. The letter offers complimentary credit monitoring via IDX identity protection and advises victims on fraud alerts, security freezes, and credit reports. The breach impacted individuals across multiple states, including Montana, Iowa, Maryland, Massachusetts, New York, North Carolina, Oregon, Washington D.C., New Mexico, and Rhode Island. Specific data types affected include personal identifiers and financial information. The incident status is contained, with ARCC committed to safeguarding personal information.

J jump to incidentP pin to compareR raw source

Incident timeline — partial

? — ?

Breach window unknown

Jan 11, 2023

Filed

—

No filing yet · watching

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed157 affectedView incident

Name: Arrowhead Regional Computing Consortium
norm: arrowhead regional computing consortium

Name: Arrowhead Regional Computing Consortium
norm: arrowhead regional computing consortium
Industry: TechnologyllmEducationllm

Discovered: —
Materiality determined: —
Notification sent: Oct 18, 2025
Affected individuals: 157state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unknown
MITRE ATT&CK: T1052 Exfiltration Over Physical Medium

During the incident: Set up dedicated and confidential toll-free response line
Enrolled affected individuals in complimentary IDX identity protection membership with credit monitoring
Provided instructions on placing Fraud Alerts and Security Freezes on credit files
Provided contact information for major credit bureaus (Equifax, Experian, TransUnion)
Provided contact information for the Federal Trade Commission (FTC)
Provided state-specific resources for identity theft prevention
Changes made: Continually evaluate and modify practices and internal controls to enhance security and privacy
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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.

Source URL: https://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-1018.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 11, 2023
Raw hash: bf9901838d9ab10833086b702f1ca859fe56e5fe25354f86d4de83eefb03a3d2

Reporting entityArrowhead Regional Computing Consortium

Victim entityArrowhead Regional Computing Consortium

IncidentUnknown

Stated responseSet up dedicated and confidential toll-free response line

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov