MalwareProfessional ServicesProfessional ServicesRansomwareData ExfiltratedCustomer Data InvolvedPIIIdentity (basic)LowContained

Houser, LLP

bd_3c21ad29f9940afe · 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

65%

Full breach record for Houser, LLP →

Houser LLP, a legal services firm, experienced a ransomware incident where files were encrypted and data was exfiltrated between May 7-9, 2023. The breach was discovered on May 9, 2023. Affected data includes names and other personal information. The firm engaged forensic specialists, notified law enforcement, and implemented remediation measures including EDR, MFA, and phishing simulations. Credit monitoring was offered to affected individuals.

J jump to incidentP pin to compareR raw source

California clockDiscovered May 9, 2023 → Notified Feb 28, 2024295d ✗ CA 60-day late42 weeks discovery → filing

Incident timeline

undetected · 2 days

discovery → filing · 42 weeks / 295 days

May 7, 2023

Begins

May 9, 2023

Discovered

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: —
Notification sent: Feb 28, 2024
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: External

During the incident: Launched an investigation with the assistance of third-party forensic specialists
Reported this incident to law enforcement
Retained a vendor to conduct a comprehensive review of the files potentially copied
Offering complimentary access to credit monitoring and identity theft restoration services through IDX
Changes made: Implemented additional safeguards policies and procedures relating to data privacy, security and our 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
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 42 weeks(295 days from discovery to filing)
Compliance flags: CA 60-day late · 295d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: May 9, 2023
→ Notified: Feb 28, 2024
295d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: May 9, 2023 → Notified: Feb 28, 2024	295d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 5 states

View merged incident ↗

California 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 (CA), 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://oag.ca.gov/ecrime/databreach/reports/sb24-581661
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: a84bae1cb838673267252b2736f906086f2afe7b2dbf62c9d8000fbd521b95b1

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

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov