MalwareProfessional ServicesData EncryptedData ExfiltratedCustomer Data InvolvedIdentity (basic)LowContained

Houser, LLP

bd_dc827f2fcaa9d9df · schema v1 · pii pii-v1

Severity

Low

Discovered

May 9, 2023

Filed

Feb 28, 2024

To disclose

42 weeks

Affected

Not disclosed

Linked

23 filings

Confidence

64%

Full breach record for Houser, LLP →

Houser LLP, a law firm, notified affected individuals on February 28, 2024, regarding a cybersecurity incident discovered on May 9, 2023. Unauthorized actors accessed the network between May 7 and May 9, 2023, encrypting files and exfiltrating data containing names and variable personal data. The threat actor later claimed to have deleted the stolen data. Houser engaged forensic specialists, reported the incident to law enforcement, and implemented security enhancements including MFA, EDR, and penetration testing. Credit monitoring services were offered to affected individuals.

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Incident timeline

undetected · 2 days

discovery → filing · 42 weeks / 295 days

May 7, 2023

Begins

May 9, 2023

Discovered

Feb 28, 2024

Filed

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

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: Not disclosed
Data types: Identity (basic)
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: reported this incident to law enforcement

During the incident: Launched an investigation, with the assistance of third-party forensic specialists
Reported this incident to law enforcement
Offering you complimentary access to credit monitoring and identity theft restoration services through IDX
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 ↗

Delaware 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 (DE), 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://attorneygeneral.delaware.gov/wp-content/uploads/sites/50/2024/03/Houser.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: b7555747815daf506f2ad865520210b7f801c14c0020127c29f3a4023f3ec8c4

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 provenanceattorneygeneral.delaware.gov