HackingOtherStolen CredentialsCustomer Data InvolvedData ExfiltratedIdentity (basic)Government IDFinancial accountCredentialsHealth (basic)MediumContained

Westbrook Service Coorporation

bd_04b8ce5f2cbf799c · schema v1 · pii pii-v1

Severity

Medium

Discovered

Oct 15, 2021

Filed

Mar 11, 2022

To disclose

21 weeks

Affected

1state residents only

Linked

3 filings

Confidence

66%

Full breach record for Westbrook Service Coorporation →

Westbrook Service Corporation (WSC), an HVAC contractor, notified the NH Attorney General of a cybersecurity incident discovered on October 15, 2021. Unauthorized access to WSC's network exposed sensitive client data including names, SSNs, DOBs, financial account info, and health information. One NH resident was affected. WSC engaged forensic investigators, disconnected the network, changed credentials, and offered 12 months of credit monitoring via Kroll.

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Incident timeline

discovery → filing · 21 weeks / 147 days

Oct 15, 2021

Begins

Oct 15, 2021

Discovered

Mar 11, 2022

Filed

vs. sector median

+15 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

Indiana State AGbd_64edb09352d2271f2022-03-07 · +4dVerified
Montana State AGbd_e6f864d0dd4498622022-03-07 · +4dCandidate

Name: Wilson, Elser, Moskowitz, Edelman & Dicker LLP
norm: wilson elser moskowitz edelman dicker
Domain: wilsonelser.com

Name: Westbrook Service Coorporation
norm: westbrook service coorporation
Industry: Otherllm

Discovered: Oct 15, 2021
Breach occurred: Oct 15, 2021
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 7, 2022
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDFinancial accountCredentialsHealth (basic)
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney General
Initial access: valid_credentials

During the incident: Engaged a specialized cybersecurity firm to conduct a forensic investigation
Disconnected all access to their network
Changed administrative credentials
Restored operations in a safe and secure mode
Enhanced the security measures
Informed their law firm
Began identifying the potentially affected individuals in preparation for notice
Offered twelve (12) months of complimentary credit monitoring and identity theft restoration services through Kroll
Changes made: Enhanced the security measures
Took steps and will continue to take steps to mitigate the risk of future harm
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 21 weeks(147 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 ↗

Indiana State AGMar 7 · first

Montana State AGMar 7 · first

New Hampshire State AG+4d · 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/westbrook-service-20220311.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 11, 2022
Raw hash: 8ffc39436680d548f668f1244184af91f1802c29fa6f333103e002c7f4137c6c

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityWilson, Elser, Moskowitz, Edelman & Dicker LLP

Victim entityWestbrook Service Coorporation

Incidentdiscovered Oct 15, 2021

Stated responseEngaged a specialized cybersecurity firm to conduct a forensic investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov