MalwareTelecom & MediaInformationRansomwareData EncryptedData ExfiltratedTargetedIdentity (basic)MediumContained

CONTERRA ULTRA BROADBAND HOLDINGS, INC.

bd_5888499effd3ba40 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 8, 2025

Filed

Jul 17, 2025

To disclose

19 weeks

Affected · nationwide

1,4979 in this filing

Linked

5 filings

Confidence

66%

Full breach record for CONTERRA ULTRA BROADBAND HOLDINGS, INC. →

Conterra Ultra Broadband Holdings, Inc. d/b/a Conterra Networks reported a ransomware incident where an unauthorized actor gained access to its network between March 2 and March 12, 2025. The breach was discovered on March 8, 2025. The incident affected 1,497 individuals, including 9 Maine residents. The attacker encrypted servers and potentially exfiltrated files containing names and personal identifiers. Conterra engaged law enforcement (FBI) and forensic specialists, and is offering 12 months of credit monitoring and identity protection services to affected individuals.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Mar 8, 2025 → Filed with AG Jul 17, 2025131d ✗ ME AG >90d19 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 6 days

discovery → filing · 19 weeks / 131 days

Mar 2, 2025

Begins

Mar 8, 2025

Discovered

Jul 17, 2025

Filed

This filing is one of 5 about the same incident.View merged incident

A leak claim by ransomhub about this victim predates this filing by 137 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Siteransomhubbd_55f63d18456b449c2025-03-26 · +113dVerified by operator
Leak Siteransomhubbd_25cbe0305681e9a62025-03-02 · +137dVerified by operator

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_ae7466ff333fcecd2025-07-17Verified by operator
Texas State AGbd_cae96dff67b8510d2025-07-18 · +1dVerified

Name: Troutman Pepper Locke, LLP
norm: troutman pepper locke

Name: CONTERRA ULTRA BROADBAND HOLDINGS, INC.
norm: conterra ultra broadband
Domain: conterra.com
Industry: Telecommunications
Also named: Conterra Ultra Broadband Holdings, Inc.dba oflegal entity
Conterra Networksdba oftrade name
Industry: Telecom & Mediallm

Discovered: Mar 8, 2025
Breach occurred: Mar 2, 2025 – Mar 12, 2025
Undetected for: 6 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 17, 2025
Affected individuals: 1,497state + nationwide
Data types: Identity (basic)
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified Maine Attorney General

During the incident: Took steps to secure and restore network
Notified federal law enforcement agencies including the Federal Bureau of Investigation
Engaged external cybersecurity specialists to assist in investigation
Conducted comprehensive review of files to determine what information was involved
Changes made: Offered 12 months of Identity Defense Credit and Identity Monitoring Services via Epiq
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 19 weeks(131 days from discovery to filing)
Compliance flags: ME AG >90d · 131dME resident >60d · 131dLeak >90d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Mar 8, 2025
→ Filed with AG: Jul 17, 2025
131d 90 days ME AG >90d
Maine
Discovered: Mar 8, 2025
→ Notified: Jul 17, 2025
131d 60 days (analyst band; statutory cap is 30 days) ME resident >60d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Mar 8, 2025 → Filed with AG: Jul 17, 2025	131d	90 days	ME AG >90d
Maine	Discovered: Mar 8, 2025 → Notified: Jul 17, 2025	131d	60 days (analyst band; statutory cap is 30 days)	ME resident >60d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Massachusetts State AGJul 17 · first

Maine State AGJul 17 · first · this page

Texas State AG+1d

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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/fd278b65-cf6a-47d8-89ac-e697fb6bbfc0.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 17, 2025
Raw hash: b2e4e37d6071a4f60f83e4a003ff60dde40b88fcd93ae2d627c91e50aee26afe

Linked disclosures

Ransomware claims (2)

Regulatory filings (2) · sorted by filing gap

Reporting entityTroutman Pepper Locke, LLP

Victim entityCONTERRA ULTRA BROADBAND HOLDINGS, INC.

Incidentdiscovered Mar 8, 2025

Stated responseTook steps to secure and restore network

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov