DisclosureLens
HackingProfessional ServicesProfessional ServicesCustomer Data InvolvedGovernment IDIdentity (basic)HighContained

MILLIMAN, INC.

bd_3fef9efdde8291dc · schema v1 · pii pii-v1

Severity

High

Discovered

May 30, 2023

Filed

Jan 12, 2024

To disclose

32 weeks

Affected · nationwide

56,457224 in this filing

Linked

2 filings

Confidence

66%
Full breach record for MILLIMAN, INC. →5 incidents on file

Milliman, Inc. reported an external system breach (hacking) occurring on May 29, 2023, discovered on May 30, 2023. The incident affected 56,457 individuals, including 224 Maine residents. Personal Identifiable Information (PII) compromised included names and Social Security Numbers. Milliman issued written notifications and provided 4 months of identity and credit monitoring through Kroll.

Maine clockDiscovered May 30, 2023 → Filed with AG Jan 12, 2024227d ✗ ME AG >90d32 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 · 1 days
discovery → filing · 32 weeks / 227 days

May 29, 2023

Begins

May 30, 2023

Discovered

Jan 12, 2024

Filed

vs. sector median

+17 wks slower

This filing is one of 2 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Filing propagation · 2 filings · 2 states

View merged incident ↗
Vermont State AGJan 12 · first
Maine State AGJan 12 · first · this page

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.