MalwareManufacturingManufacturingRansomwareData ExfiltratedCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDHealth (basic)Financial accountMediumActive

LYDALL, INC.

bd_a2cbaf91bb0f1409 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 24, 2021

Filed

Apr 23, 2021

To disclose

4 weeks

Affected

145state residents only

Linked

5 filings

Confidence

67%

Full breach record for LYDALL, INC. →2 incidents on file

Lydall, Inc. notified the New Hampshire Attorney General on April 23, 2021, of a ransomware attack discovered on March 24, 2021. The incident potentially exposed personal information of approximately 145 New Hampshire residents, including names, SSNs, health data, and financial account numbers. Lydall terminated the attack, engaged forensic investigators, and is offering two years of complimentary credit monitoring to affected individuals.

J jump to incidentP pin to compareR raw source

Incident timeline

discovery → filing · 4 weeks / 30 days

Mar 24, 2021

Discovered

Apr 23, 2021

Filed

vs. sector median

6 wks faster

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Maine State AGbd_2530c99841e5ccba2021-04-23Verified
Indiana State AGbd_53e25fcf865a314b2021-04-26 · +3dVerified
Massachusetts State AGbd_43a97da127acdc8e2021-04-27 · +4dVerified
Maine State AGbd_41f8b42e82b36db92021-08-10 · +109dVerified

Name: LYDALL, INC.
norm: lydall

Name: LYDALL, INC.
norm: lydall
Industry: Manufacturingllm

Discovered: Mar 24, 2021
Materiality determined: —
Notification sent: Apr 26, 2021
Affected individuals: 145state-resident count only
Data types: Identity (basic)Government IDHealth (basic)Financial account
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: ExternalFinancial
Regulator citations: notifying state agencies as required in jurisdictions where affected individuals reside

During the incident: Terminated the attack
Engaged outside law firm and outside forensics investigators
Providing notice of this incident to the affected individuals by mail
Offering credit monitoring services for two years at no cost
Reviewing and enhancing its safeguards
Changes made: Reviewing and enhancing its safeguards to mitigate the risk of further or future compromises of personal information
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 · 5 filings · 4 states

View merged incident ↗

Maine State AGApr 23 · first

New Hampshire State AGApr 23 · first · this page

Indiana State AG+3d

Massachusetts State AG+4d

Maine State AG+109d

Pattern: first filing Apr 23 (ME), last Aug 10 (ME) — a 109-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/lydall-20210423.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 23, 2021
Raw hash: 2b180a92dbf5b8d54c1f122ef845433c1f4fb695bd01241cc80439f2ed694f1c

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityLYDALL, INC.

Victim entityLYDALL, INC.

Incidentdiscovered Mar 24, 2021

Stated responseTerminated the attack

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov