DisclosureLens
MalwareHealthcareHealthcareRansomwareCapture Stored DataData ExfiltratedData EncryptedCustomer Data InvolvedDelayed DiscoveryPIIPHIIdentity (basic)Health (basic)LowContained

Harvard Pilgrim Health Care

bd_9b1c4d63a64d8aab · schema v1 · pii pii-v1

Severity

Low

Discovered

Apr 17, 2023

Filed

Oct 3, 2024

To disclose

18 months

Affected

Not disclosed

Linked

35 filings

Confidence

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

Harvard Pilgrim Health Care disclosed a ransomware incident discovered on April 17, 2023. Unauthorized access occurred between March 28 and April 17, 2023, resulting in data exfiltration. The company determined on August 15, 2024, that affected files contained personal and protected health information. The organization engaged forensic experts, notified law enforcement, and implemented additional cybersecurity safeguards.

Incident timeline

undetected · 20 days
discovery → filing · 18 months / 535 days

Mar 28, 2023

Begins

Apr 17, 2023

Discovered

Aug 15, 2024

Scope determined

Oct 3, 2024

Filed

vs. sector median

+64 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 406d gap

Showing first 10 of 34 linked disclosures.

Filing propagation · 11 filings · 6 states

View merged incident ↗
Maine State AGMar 27 · first
Delaware State AGMar 27 · first
New Hampshire State AGMar 27 · first
California State AGMar 27 · first
New Hampshire State AG+190d · this page

Pattern: first filing Mar 27 (ME), last Nov 13 (MD) — a 596-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.