HackingProfessional ServicesProfessional ServicesStolen CredentialsSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

MILLIMAN, INC.

bd_2c4f45cb4ab5648d · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 31, 2023

Filed

Jan 12, 2024

To disclose

32 weeks

Affected

Not disclosed

Linked

2 filings

Confidence

69%

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

Pension Benefit Information, LLC (PBI) notified consumers of a data breach involving Progress Software's MOVEit Transfer software. Unauthorized access occurred on May 29-30, 2023, when an attacker downloaded data from a PBI server. Progress Software disclosed the vulnerability on or around May 31, 2023. PBI patched servers, enhanced security policies, and offered 24 months of credit monitoring via Kroll. No identity theft has been confirmed.

J jump to incidentP pin to compareR raw source

Vermont clock✗ VT AG >45 bday32 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 2 days

discovery → filing · 32 weeks / 226 days

May 29, 2023

Begins

May 31, 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

Maine State AGbd_3fef9efdde8291dc2024-01-12Candidate

Name: Pension Benefit Information, LLC
norm: pension benefit information
Domain: us.milliman.com

Name: MILLIMAN, INC.
norm: milliman
Domain: us.milliman.com
Industry: Professional Servicesllm

Discovered: May 31, 2023
Breach occurred: May 29, 2023 – May 30, 2023
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Initial access: supply_chain

During the incident: Patched servers
Investigate
Assess the security of our systems
Notify potentially affected customers and individuals
Reviewing and enhancing our information security policies and procedures
Offering you access to 24 months of complimentary credit monitoring and identity restoration services through Kroll
Changes made: Reviewing and enhancing our information security policies and procedures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 32 weeks(226 days from discovery to filing)
Compliance flags: VT AG >45 bday
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Maine State AGJan 12 · first

Vermont 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.

Source URL: https://ago.vermont.gov/document/2024-01-12-milliman-data-progress-software-moveit-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 12, 2024
Raw hash: b2d12cc527046b9da7fbb401b0cf2f18c9eaa2bba656dd6548c2741861ab00ea

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityPension Benefit Information, LLC

Victim entityMILLIMAN, INC.

Incidentdiscovered May 31, 2023

Stated responsePatched servers

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov