HackingRetail & ConsumerProfessional ServicesRetailStolen CredentialsData ExfiltratedCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDMediumContained

MWI Veterinary Supply, Inc.

bd_68374ced74ce1a74 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 30, 2024

Filed

Nov 12, 2024

To disclose

6 weeks

Affected

28state residents only

Linked

7 filings

Confidence

67%

Full breach record for MWI Veterinary Supply, Inc. →2 incidents on file

MWI Veterinary Supply, Inc. notified the NH AG of a data security incident discovered on Sept 30, 2024. Unauthorized access led to exfiltration of PII (names, SSNs, DOBs, driver's licenses) of employees, dependents, and customers. Incident is contained. 28 NH residents notified. Credit monitoring offered.

J jump to incidentP pin to compareR raw source

Leak gap clock✗ Leak >180d6 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

discovery → filing · 6 weeks / 43 days

Sep 30, 2024

Discovered

Nov 12, 2024

Filed

vs. sector median

1 wks faster

This filing is one of 7 about the same incident.View merged incident

A leak claim by lorenz about this victim predates this filing by 645 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

Vermont State AGbd_106866268166cc202024-11-04 · +8dVerified
Indiana State AGbd_417cec55efa00f862024-11-04 · +8dVerified
Maine State AGbd_881516599e930adb2024-11-04 · +8dCandidate
Massachusetts State AGbd_c165b2aa6399e4402024-11-04 · +8dVerified

Show 2 more filings ↓up to 8d gap

Montana State AGbd_c607081831255b902024-11-04 · +8dCandidate
California State AGbd_e02a7dd25f3a11812024-11-04 · +8dVerified

Name: MWI Veterinary Supply, Inc.
norm: mwi veterinary supply

Name: MWI Veterinary Supply, Inc.
norm: mwi veterinary supply
Industry: Retail & ConsumerllmProfessional Servicesllm

Discovered: Sep 30, 2024
Materiality determined: —
Notification sent: Nov 4, 2024
Affected individuals: 28state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Office of the Attorney General
Initial access: valid_credentials

During the incident: Engaged third-party cyber experts to conduct an investigation
Took steps to strengthen the security of its systems
Commenced an investigation with the assistance of law enforcement, cybersecurity experts and outside lawyers
Sent notifications by mail to the affected individuals
Provided access to Experian IdentityWorks credit monitoring and remediation services
Changes made: Working with cybersecurity experts to reinforce systems and information security protocols
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(43 days from discovery to filing)
Compliance flags: Leak >180d
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 · 7 filings · 7 states

View merged incident ↗

Vermont State AGNov 4 · first

Indiana State AGNov 4 · first

Maine State AGNov 4 · first

Massachusetts State AGNov 4 · first

Montana State AGNov 4 · first

California State AGNov 4 · first

New Hampshire State AG+8d · this page

Pattern: first filing Nov 4 (VT), last Nov 12 (NH) — a 8-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://mm.nh.gov/files/uploads/doj/remote-docs/mwi-veterinary-supply-20241112.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 12, 2024
Raw hash: 6aad13a838ac55b389136badf422ae3799823bd4292c18697975fc780a730f70

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Reporting entityMWI Veterinary Supply, Inc.

Victim entityMWI Veterinary Supply, Inc.

Incidentdiscovered Sep 30, 2024

Stated responseEngaged third-party cyber experts to conduct an investigation

ComplianceLeak >180d

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov