HackingHealthcareHealthcareData ExfiltratedCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDHealth (basic)Financial accountMediumActive

Harbor

bd_2553d8403fd8364b · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 1, 2025

Filed

Oct 24, 2025

To disclose

12 weeks

Affected

5state residents only

Linked

8 filings

Confidence

66%

Full breach record for Harbor →4 incidents on file

Harbor, a healthcare entity, reported an external system breach (hacking) affecting 5 Maine residents. Unauthorized access occurred between July 25 and August 1, 2025. Compromised data included names, SSNs, driver's licenses, medical/financial info. Harbor notified HHS, credit bureaus, and affected individuals, offering 12 months of credit monitoring via Epiq. Investigation is ongoing.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Aug 1, 2025 → Filed with AG Oct 24, 202584d ⏱ ME AG >30d12 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 · 7 days

discovery → filing · 12 weeks / 84 days

Jul 25, 2025

Begins

Aug 1, 2025

Discovered

Oct 24, 2025

Filed

vs. sector median

on median

This filing is one of 8 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (7) · sorted by filing gap

Nebraska State AGbd_02bb0b2f44a761b92025-10-24Verified
Massachusetts State AGbd_18438c745531b7f22025-10-24Verified
New Hampshire State AGbd_2f540137b6d032672025-10-24Verified
Vermont State AGbd_9a4998fa85b306a62025-10-24Verified

Show 3 more filings ↓up to 24d gap

Montana State AGbd_d4a34d6895ce79792025-10-24Verified
Illinois State AGbd_cde758c48c991ef32025-10-01 · +23dCandidate
HHS OCRbd_7bfe7b23f5f210c72025-09-30 · +24dVerified by operator

Name: Harbor
norm: harbor
Domain: goharbor.io

Name: Harbor
norm: harbor
Domain: goharbor.io
Industry: Healthcarellm

Discovered: Aug 1, 2025
Breach occurred: Jul 25, 2025 – Aug 1, 2025
Undetected for: 7 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 24, 2025
Affected individuals: 5state-resident count only
Data types: Identity (basic)Government IDHealth (basic)Financial account
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: External
Regulator citations: providing written notice of this incident to relevant state and federal regulatorsnotifying the U.S. Department of Health and Human Services pursuant to the Health Insurance Portability and Accountability Act (HIPAA)
Initial access: exploit_public_facing

During the incident: Harbor moved quickly to investigate and respond to the incident
Assess the security of Harbor systems
Identify potentially affected individuals
Working to implement additional safeguards and training to its employees
Providing access to credit monitoring services through Epiq
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Providing written notice of this incident to relevant state and federal regulators
Notifying the U.S. Department of Health and Human Services pursuant to the Health Insurance Portability and Accountability Act (HIPAA)
Changes made: Implement additional safeguards and training to its employees
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 weeks(84 days from discovery to filing)
Compliance flags: ME AG >30d · 84d
Discovery-date grounding: 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.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Aug 1, 2025
→ Filed with AG: Oct 24, 2025
84d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Aug 1, 2025 → Filed with AG: Oct 24, 2025	84d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 8 filings · 8 states

View merged incident ↗

HHS OCRSep 30 · first

Illinois State AG+1d

Nebraska State AG+24d

Massachusetts State AG+24d

New Hampshire State AG+24d

Vermont State AG+24d

Montana State AG+24d

Maine State AG+24d · this page

Pattern: first filing Sep 30 (OH), last Oct 24 (ME) — a 24-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.

Source URL: https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/44f9f1db-7a31-452c-8a6e-5651aa35d979.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 24, 2025
Raw hash: b83c5ed2313aec9430b9bd70e08eec567dee70187f45d1c03366651dd06b8fe7

Linked disclosures

Regulatory filings (7) · sorted by filing gap

Reporting entityHarbor

Victim entityHarbor

Incidentdiscovered Aug 1, 2025

Stated responseHarbor moved quickly to investigate and respond to the incident

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov