HackingIdentity (basic)Government IDMediumContained

Petco Animal Supplies Stores

bd_9c3f05e47c434873 · schema v1 · pii pii-v2

Severity

Medium

Discovered

Aug 11, 2026

Filed

Sep 10, 2026

To disclose

4 weeks

Affected

1state residents only

Linked

2 filings

Confidence

68%

Full breach record for Petco Animal Supplies Stores →6 incidents on file

Petco Animal Supplies Stores, Inc. notified the New Hampshire Attorney General of a cybersecurity incident affecting one New Hampshire resident. Unauthorized access to a single employee's Microsoft 365 account resulted in the exposure of the resident's name and driver's license number. Petco contained the incident, engaged third-party cybersecurity professionals, and mailed a notification letter on September 10, 2026, offering two years of credit monitoring services.

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Incident timeline

discovery → filing · 4 weeks / 30 days

Aug 11, 2026

Discovered

Sep 10, 2026

Filed

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

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Vermont State AGbd_c9b9d498130a388f2026-09-10Candidate

Name: BAKER & HOSTETLER LLP
norm: baker hostetler

Name: Petco Animal Supplies Stores
norm: petco animal supplies stores

Discovered: Aug 11, 2026
Materiality determined: —
Notification sent: Sep 10, 2026
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Took steps to contain the activity
Launched an investigation with the assistance of third-party cybersecurity professionals
Reviewed the files involved
Mailed a notification letter via First-Class mail to the involved New Hampshire resident
Offering a complimentary, two-year membership to credit monitoring and identity protection services through Epiq
Established a dedicated, toll-free call center
Changes made: Implemented additional security measures and technical controls to enhance the security of its systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(30 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Vermont State AGSep 10 · first

New Hampshire State AGSep 10 · 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://mm.nh.gov/files/uploads/doj/remote-docs/petco-animal-supplies-stores-20260910.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 10, 2026
Raw hash: e28826de6bafa8dd4540a2d18819a2acccaebeb113b40a9cc6b298730a2c12e8

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityBAKER & HOSTETLER LLP

Victim entityPetco Animal Supplies Stores

Incidentdiscovered Aug 11, 2026

Stated responseTook steps to contain the activity

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov