DisclosureLens
MalwareHealthcareHealthcareRansomwareVulnerability ExploitData ExfiltratedData EncryptedRansom DemandedCustomer Data InvolvedTargetedIdentity (basic)Government IDFinancial accountHealth (basic)PHIMediumContained

Highlands Oncology Group PA

bd_dbb625888ec67b01 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 2, 2025

Filed

Aug 1, 2025

To disclose

9 weeks

Affected

5state residents only

Linked

7 filings

Confidence

66%
Full breach record for Highlands Oncology Group PA →2 incidents on file

Highlands Oncology Group PA reported a ransomware attack discovered on June 2, 2025, affecting 5 New Hampshire residents. The attacker exploited a vendor application vulnerability between Jan 21 and June 2, 2025, encrypting files and potentially exfiltrating PHI, SSNs, and financial data. Highlands engaged forensic experts, notified law enforcement, and offered 12 months of credit monitoring.

Incident timeline

undetected · 132 days
discovery → filing · 9 weeks / 60 days

Jan 21, 2025

Begins

Jun 2, 2025

Discovered

Aug 1, 2025

Filed

vs. sector median

4 wks faster

This filing is one of 7 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

Show 2 more filings ↓up to 3d gap

Filing propagation · 7 filings · 7 states

View merged incident ↗
Massachusetts State AGAug 1 · first
HHS OCRAug 1 · first
Illinois State AGAug 1 · first
Nebraska State AGAug 1 · first
Maine State AGAug 1 · first
New Hampshire State AGAug 1 · first · this page
Texas State AG+3d

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.