HackingOtherStolen CredentialsCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDPHIHealth (basic)MediumContained

MWI Veterinary Supply, Inc.

bd_106866268166cc20 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 30, 2024

Filed

Nov 4, 2024

To disclose

5 weeks

Affected

Not disclosed

Linked

7 filings

Confidence

67%

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

MWI Veterinary Supply, Inc. reported a data security incident confirmed on September 30, 2024, involving personal information of employees, dependents, and customers. Data accessed included names, addresses, SSNs, driver's license info, and health insurance details. The incident is contained. MWI engaged cybersecurity experts, law enforcement, and legal counsel, and is offering 24 months of credit monitoring via Experian.

J jump to incidentP pin to compareR raw source

Vermont clock⏱ VT AG >14 bday5 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 · 5 weeks / 35 days

Sep 30, 2024

Discovered

Nov 4, 2024

Filed

vs. sector median

1 wks faster

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

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

Indiana State AGbd_417cec55efa00f862024-11-04Verified
Maine State AGbd_881516599e930adb2024-11-04Candidate
Massachusetts State AGbd_c165b2aa6399e4402024-11-04Verified
Montana State AGbd_c607081831255b902024-11-04Candidate

Show 2 more filings ↓up to 8d gap

California State AGbd_e02a7dd25f3a11812024-11-04Verified
New Hampshire State AGbd_68374ced74ce1a742024-11-12 · +8dVerified

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

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

Discovered: Sep 30, 2024
Materiality determined: —
Notification sent: Nov 4, 2024
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDPHIHealth (basic)
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: investigation with the assistance of law enforcement
Initial access: valid_credentials

During the incident: Launched an investigation with the assistance of cybersecurity experts, law enforcement, and outside lawyers
Reviewed the impacted data to determine whether personal information was compromised
Working with cybersecurity experts to reinforce our systems and information security protocols
Providing you with access to Experian IdentityWorks credit monitoring and remediation services for 24 months at no charge
Changes made: Reinforce our systems and information security protocols
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(35 days from discovery to filing)
Compliance flags: VT AG >14 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 · 7 filings · 7 states

View merged incident ↗

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

Vermont State AGNov 4 · first · this page

New Hampshire State AG+8d

Pattern: first filing Nov 4 (IN), 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://ago.vermont.gov/document/2024-11-04-mwi-veterinary-supply-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 4, 2024
Raw hash: b06288c2f3e682097e0868c975e1b96846cad2bc6d19d2317d60766a81f87ce8

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Reporting entityMWI Veterinary Supply, Inc.

Victim entityMWI Veterinary Supply, Inc.

Incidentdiscovered Sep 30, 2024

Stated responseLaunched an investigation with the assistance of cybersecurity experts, law enforcement, and outside lawyers

ComplianceVT AG >14 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov