HackingManufacturingManufacturingCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

ASP Unifrax Holdings, Inc.

bd_9921d003f612a39e · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 1, 2026

Filed

Jul 17, 2026

To disclose

15 weeks

Affected

271state residents only

Linked

4 filings

Confidence

65%

Full breach record for ASP Unifrax Holdings, Inc. →

ASP Unifrax Holdings, Inc. (Alkegen) notified the NH Attorney General of unauthorized access to its computer systems on April 1, 2026. An unauthorized actor viewed or obtained files containing names, Social Security numbers, financial account numbers, and taxpayer identification numbers of 271 New Hampshire residents. The company engaged a third-party cybersecurity firm, secured systems, and sent notifications on July 17, 2026, offering one year of credit monitoring.

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Incident timeline

discovery → filing · 15 weeks / 107 days

Apr 1, 2026

Begins

Apr 1, 2026

Discovered

Jul 17, 2026

Filed

vs. sector median

+5 wks slower

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Vermont State AGbd_aeeb21092b8e046f2026-07-17Verified
Massachusetts State AGbd_b9307c9ab66285202026-07-17Candidate
Nebraska State AGbd_d1f71e55449a6cb82026-07-17Verified

Name: ASP Unifrax Holdings, Inc.
norm: asp unifrax

Name: ASP Unifrax Holdings, Inc.
norm: asp unifrax
Industry: Manufacturingllm

Discovered: Apr 1, 2026
Breach occurred: Apr 1, 2026
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 17, 2026
Affected individuals: 271state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified the New Hampshire Attorney General

During the incident: Took steps to secure its computer systems
Launched an investigation
Engaged a third-party cybersecurity firm to assist
Sent a notification letter via U.S. First-Class mail to the New Hampshire residents
Offering the notice recipients with an involved Social Security number one year of complimentary credit monitoring and identity theft restoration services through Kroll
Established a toll-free call center to answer any questions notified individuals may have
Changes made: Taken additional steps to enhance its existing security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 weeks(107 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Vermont State AGJul 17 · first

Massachusetts State AGJul 17 · first

Nebraska State AGJul 17 · first

New Hampshire State AGJul 17 · 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/asp-unifrax-holdings-alkegen-20260717.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 17, 2026
Raw hash: 932a5407eb0284b2e5267929139718831fc8516db58b4e63e4f4a1210457041f

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityASP Unifrax Holdings, Inc.

Victim entityASP Unifrax Holdings, Inc.

Incidentdiscovered Apr 1, 2026

Stated responseTook steps to secure its computer systems

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov