DisclosureLens
MalwareHealthcareFinancial ServicesHealthcareRansomwareCapture Stored DataData ExfiltratedData EncryptedRansom DemandedCustomer Data InvolvedDownstream VictimsPIIPHIIdentity (basic)Health (basic)LowActive

Harvard Pilgrim Health Care

bd_826a042bdbb8ed5e · schema v1 · pii pii-v1

Severity

Low

Discovered

Apr 17, 2023

Filed

Aug 24, 2023

To disclose

18 weeks

Affected

Not disclosed

Linked

35 filings

Confidence

64%
Full breach record for Harvard Pilgrim Health Care14 incidents on file

Harvard Pilgrim Health Care reported a ransomware incident discovered on April 17, 2023, affecting systems used to service clients including UnitedHealthcare. Unauthorized access occurred between March 28 and April 17, 2023, resulting in data exfiltration. The files contained personal and protected health information. The company engaged forensic experts, notified law enforcement, and implemented additional cybersecurity safeguards. Credit monitoring services were offered to affected individuals.

Incident timeline

undetected · 20 days
discovery → filing · 18 weeks / 129 days

Mar 28, 2023

Begins

Apr 17, 2023

Discovered

Jun 21, 2023

Scope determined

Aug 24, 2023

Filed

vs. sector median

+6 wks slower

This filing is one of 35 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Show 6 more filingsup to 812d gap

Showing first 10 of 34 linked disclosures.

Filing propagation · 11 filings · 6 states

View merged incident ↗

Pattern: first filing Aug 24 (NH), last Nov 13 (MD) — a 812-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 34 — the full spread may be wider.

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.