MalwareProfessional ServicesProfessional ServicesRansomwareCapture Stored DataData ExfiltratedCustomer Data InvolvedPIIIdentity (basic)LowContained

Houser, LLP

bd_3f910d0506adf4a3 · schema v1 · pii pii-v1

Severity

Low

Discovered

May 9, 2023

Filed

Apr 12, 2024

To disclose

48 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 firm discovered the encryption on May 9, 2023. Investigation confirmed unauthorized access and copying of files containing names and other personal information. The actor later claimed to have deleted the stolen data. Houser implemented MFA, EDR, and other security controls. Credit monitoring is offered to affected individuals.

J jump to incidentP pin to compareR raw source

California clockDiscovered May 9, 2023 → Notified Apr 12, 2024339d ✗ CA 60-day late48 weeks discovery → filing

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

Vermont State AGbd_521a4b0865ecc11a2024-04-12Verified
New Hampshire State AGbd_5c7bcad0b397e0a12024-04-12Verified
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: Apr 12, 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: 48 weeks(339 days from discovery to filing)
Compliance flags: CA 60-day late · 339d
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: Apr 12, 2024
339d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: May 9, 2023 → Notified: Apr 12, 2024	339d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

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

Vermont State AG+43d

New Hampshire State AG+43d

Delaware State AG+43d

Maine State AG+43d

California State AG+43d · this page

Pattern: first filing Feb 29 (SC), last Apr 12 (CA) — 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://oag.ca.gov/ecrime/databreach/reports/sb24-583890
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: 5d22534558891820d129557acc163b6a33c3834b4bd8e5a0fdd116c7fcc41576

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