HackingHealthcareManufacturingHealthcareData ExfiltratedCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDFinancial accountMediumContained

LeMaitre Vascular, Inc.

bd_3b7ab65b43a78c1c · schema v1 · pii pii-v2

Severity

Medium

Discovered

Jan 10, 2026

Filed

Sep 18, 2026

To disclose

36 weeks

Affected

92state residents only

Linked

3 filings

Confidence

68%

Full breach record for LeMaitre Vascular, Inc. →2 incidents on file

LeMaitre Vascular, Inc. notified the NH Attorney General of a data security incident discovered on January 10, 2026, involving unauthorized access to files containing names, SSNs, USCIS Alien Registration numbers, and financial account numbers of approximately 92 New Hampshire residents. The company engaged cybersecurity experts, reviewed affected data, and sent notifications on September 18, 2026. Identity protection services were offered.

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Incident timeline

discovery → filing · 36 weeks / 251 days

Jan 10, 2026

Discovered

Sep 18, 2026

Filed

vs. sector median

+27 wks slower

This filing is one of 3 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Vermont State AGbd_4ef0af760672dc1a2026-09-18Candidate
Indiana State AGbd_6de3ddd4ebd42d172026-09-18Verified

Name: LeMaitre Vascular, Inc.
norm: lemaitre vascular

Name: LeMaitre Vascular, Inc.
norm: lemaitre vascular
Industry: HealthcarellmManufacturingllm

Discovered: Jan 10, 2026
Materiality determined: —
Notification sent: Sep 18, 2026
Affected individuals: 92state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unknown
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified New Hampshire Attorney General

During the incident: Initiated an investigation with the assistance of independent cybersecurity experts
Undertook a comprehensive review of potentially affected files
Implemented additional safeguards to help prevent a similar incident from occurring in the future
Providing potentially impacted individuals with access to complimentary identity protection services through TransUnion for 12 months
Providing impacted individuals with guidance on how to help protect against identity theft and fraud
Changes made: Implemented additional safeguards to help prevent a similar incident from occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 36 weeks(251 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Vermont State AGSep 18 · first

Indiana State AGSep 18 · first

New Hampshire State AGSep 18 · 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/lemaitre-vascular-20260918.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 18, 2026
Raw hash: f7807f3bb8fbdace6f0651b37b295df180b189ee222ed0e26669511e18afe829

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityLeMaitre Vascular, Inc.

Victim entityLeMaitre Vascular, Inc.

Incidentdiscovered Jan 10, 2026

Stated responseInitiated an investigation with the assistance of independent cybersecurity experts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov