MalwareProfessional ServicesProfessional ServicesRansomwareData ExfiltratedData EncryptedCustomer Data InvolvedDelayed DiscoveryPIIIdentity (basic)Government IDHighContained

Houser, LLP

bd_5c7bcad0b397e0a1 · schema v1 · pii pii-v1

Severity

High

Discovered

May 9, 2023

Filed

Apr 12, 2024

To disclose

48 weeks

Affected

2,217state residents only

Linked

23 filings

Confidence

66%

Full breach record for Houser, LLP →

Houser, LLP, a law firm, disclosed a ransomware incident affecting New Hampshire residents. Unauthorized access occurred between May 7-9, 2023, resulting in file encryption and data exfiltration. The firm notified the FBI, engaged forensic specialists, and implemented security enhancements including MFA and EDR. 2,217 NH residents were notified on February 28, 2024, receiving credit monitoring services.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 2 days

discovery → filing · 48 weeks / 339 days

May 7, 2023

Begins

May 9, 2023

Discovered

Apr 12, 2024

Filed

vs. sector median

+30 wks slower

This filing is one of 23 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

California State AGbd_3f910d0506adf4a32024-04-12Verified
Vermont State AGbd_521a4b0865ecc11a2024-04-12Verified
Delaware State AGbd_631c1acc1b5f6e812024-04-12Verified
Maine State AGbd_b60a96892267f8cc2024-04-12Verified

Show 6 more filings ↓up to 43d gap

Vermont State AGbd_af0b2641e3351df62024-03-27 · +16dVerified
New Hampshire State AGbd_13a325d86f76f6f72024-03-26 · +17dVerified
Delaware State AGbd_18b5dd7e86b213522024-03-26 · +17dVerified
California State AGbd_8a4cf4dd8b36d1b42024-03-26 · +17dVerified
Maine State AGbd_c1c7841f0ee89fe52024-03-26 · +17dVerified
South Carolina State AGbd_15d84c1e20608c802024-02-29 · +43dVerified

Showing first 10 of 22 linked disclosures.

Name: Houser
norm: houser
Domain: houser.com

Name: Houser, LLP
norm: houser
Domain: houser-law.com
Industry: Professional Servicesllm

Discovered: May 9, 2023
Breach occurred: May 7, 2023 – May 9, 2023
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 28, 2024
Affected individuals: 2,217state-resident count only
Data types: PIIIdentity (basic)Government ID
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: providing written notice of this incident to relevant state regulators, as necessary, and to the three major credit reporting agencies, Equifax, Experian, and TransUnion

During the incident: Launched an investigation, with the assistance of third-party forensic specialists
Notified the FBI regarding the event
Reported this incident to law enforcement
Changes made: Deployment of RocketCyber, an endpoint detection and response tool
Implemented multi-factor authentication for Outlook 365, net extender VPN tunnel and remote desktop connection
Added ransomware detection software
Implemented the use of phishing simulation software
Conducted vulnerability assessment and penetration testing
Providing access to credit monitoring services for individuals whose personal information was potentially affected by this incident, at no cost to these individuals
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 48 weeks(339 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 6 states

View merged incident ↗

South Carolina State AGFeb 29 · first

New Hampshire State AG+26d

Delaware State AG+26d

California State AG+26d

Maine State AG+26d

Vermont State AG+27d

California State AG+43d

Vermont State AG+43d

Delaware State AG+43d

Maine State AG+43d

New Hampshire State AG+43d · this page

Pattern: first filing Feb 29 (SC), last Apr 12 (NH) — a 43-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 22 — the full spread may be wider.

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/houser-20240412.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 12, 2024
Raw hash: 6b2593da8f7a5c499ef056bf679034fef42f3f8eef48327c30ee5d5622c4369c

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityHouser

Victim entityHouser, LLP

Incidentdiscovered May 9, 2023

Stated responseLaunched an investigation, with the assistance of third-party forensic specialists

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov