MalwareProfessional ServicesProfessional ServicesRansomwareCapture Stored DataData ExfiltratedData EncryptedRansom DemandedCustomer Data InvolvedIdentity (basic)MediumContained

Houser, LLP

bd_6fe947f140d2ac82 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 9, 2023

Filed

Feb 28, 2024

To disclose

42 weeks

Affected

2,217state residents only

Linked

23 filings

Confidence

65%

Full breach record for Houser, LLP →

Houser LLP, a law firm, disclosed a ransomware incident occurring between May 7-9, 2023. Files were encrypted and unauthorized access occurred. The actor claimed to have deleted stolen data. Houser notified the FBI, engaged forensic specialists, and implemented security enhancements including MFA and EDR. 2,217 New Hampshire residents were notified; affected data included names and variable data. Credit monitoring was offered.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 2 days

discovery → filing · 42 weeks / 295 days

May 7, 2023

Begins

May 9, 2023

Discovered

Jan 18, 2024

Scope determined

Feb 28, 2024

Filed

vs. sector median

+23 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

New Hampshire State AGbd_13a325d86f76f6f72024-03-26 · +27dVerified
Delaware State AGbd_18b5dd7e86b213522024-03-26 · +27dVerified
California State AGbd_8a4cf4dd8b36d1b42024-03-26 · +27dVerified
Maine State AGbd_c1c7841f0ee89fe52024-03-26 · +27dVerified

Show 6 more filings ↓up to 44d gap

Vermont State AGbd_af0b2641e3351df62024-03-27 · +28dVerified
California State AGbd_3f910d0506adf4a32024-04-12 · +44dVerified
Vermont State AGbd_521a4b0865ecc11a2024-04-12 · +44dVerified
New Hampshire State AGbd_5c7bcad0b397e0a12024-04-12 · +44dVerified
Delaware State AGbd_631c1acc1b5f6e812024-04-12 · +44dVerified
Maine State AGbd_b60a96892267f8cc2024-04-12 · +44dVerified

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: Jan 18, 2024
Notification sent: Feb 28, 2024
Affected individuals: 2,217state-resident count only
Data types: Identity (basic)
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified the FBI regarding the eventProviding 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
Implemented additional safeguards and policies and procedures relating to data privacy, security and its network environment
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
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
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
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 42 weeks(295 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 · 5 states

View merged incident ↗

New Hampshire State AGFeb 28 · first · this page

New Hampshire State AG+27d

Delaware State AG+27d

California State AG+27d

Maine State AG+27d

Vermont State AG+28d

California State AG+44d

Vermont State AG+44d

New Hampshire State AG+44d

Delaware State AG+44d

Maine State AG+44d

Pattern: first filing Feb 28 (NH), last Apr 12 (ME) — a 44-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-20240228.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 28, 2024
Raw hash: 67753fc9c6f6f34ecc3d608dbfbf4f047507345c129d2f32a0e75754e477a3f1

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