DisclosureLens
MalwareHealthcareHealthcareRansomwareData ExfiltratedCustomer Data InvolvedDelayed DiscoveryPHIHealth (basic)Identity (basic)Government IDMediumContained

Harvard Pilgrim Health Care

bd_718a015221cd2671 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 17, 2023

Filed

Feb 15, 2024

To disclose

43 weeks

Affected

Not disclosed

Linked

35 filings

Confidence

65%
Full breach record for Harvard Pilgrim Health Care14 incidents on file

Harvard Pilgrim Health Care disclosed a ransomware incident where an unauthorized party accessed systems from March 28 to April 17, 2023. The organization discovered the incident on April 17, 2023, and took systems offline. Investigation confirmed data was copied and taken. This supplemental notice informs affected individuals, including California and Rhode Island residents, that their personal and health information may have been involved. Credit monitoring services are being provided.

California clockDiscovered Apr 17, 2023Notified Feb 15, 2024304d CA 60-day late43 weeks discovery → filing

Incident timeline

undetected · 20 days
discovery → filing · 43 weeks / 304 days

Mar 28, 2023

Begins

Apr 17, 2023

Discovered

Feb 15, 2024

Filed

vs. sector median

+31 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 637d gap

Showing first 10 of 34 linked disclosures.

Filing propagation · 11 filings · 6 states

View merged incident ↗

Pattern: first filing Feb 15 (CA), last Nov 13 (MD) — a 637-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.