Houser LLP reported a data breach to the Montana Attorney General. The breach was reported on 2024-02-28. The breach occurred from 5/7/2023 to 5/9/2023. 588 Montana residents were affected.
Affected (this filing): 588
Clustered 19 filings across 9 jurisdictions · filing window Feb 28, 2024 → Apr 12, 2024. View entity profile → Other incidents for this victim →
incident inc_e647c062f94c42dc · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
Identity (basic) · Financial account · Financial credentials
Time between earliest and latest filing
Not recorded for this incident
Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster.
CA DE IN ME MT NH OR VT
all State AG
per-filing reported counts
State AGs report only their own residents; bars show per-filing counts.
Earliest sighting first · deep chronology in Litigation Timeline
19 filings across 9 jurisdictions · Feb 28, 2024 – Apr 12, 2024 · 3 milestones
May 7, 2023
When the intrusion reportedly occurred, per the linked filings
May 9, 2023
Reported by WASHINGTON AG, CALIFORNIA AG, NEW HAMPSHIRE AG, VERMONT AG, DELAWARE AG filings
Jan 18, 2024
Reported by MAINE AG, OREGON AG filings
About this clustering
DisclosureLens links filings into incidents through layered matchers: deterministic rules (same source document, multistate filings of one breach, tight-window same-victim pairs), a weighted-similarity scorer for cross-source candidates, and an operator review queue for everything uncertain. Each link records its own method and confidence — shown per filing in the timeline below. The system defaults to NOT merging when uncertain, because a false merge (collapsing two unrelated breaches) is more harmful than a false split (showing related filings separately); uncertain pairs route to human review instead of auto-merging. Filing summaries shown in the timeline are AI-generated extracts — verify each against its linked source.
Houser LLP, a professional services firm, reported an external system breach that occurred on May 7, 2023, and was discovered on January 18, 2024. The incident affected 326,386 individuals, compromising names and financial account information, including account numbers and access codes/PINs. The firm notified affected individuals on February 28, 2024, and offered 12 months of credit monitoring services through IDX.
Affected (this filing): 326,386
Houser LLP reported a data breach to the Montana Attorney General. The breach was reported on 2024-02-28. The breach occurred from 5/7/2023 to 5/9/2023. 588 Montana residents were affected.
Affected (this filing): 588
Houser LLP, a business sector entity reported a ransomware incident to the Washington Attorney General. The organization became aware of the incident on 2023-05-09 and filed notice on 2024-02-28. 7,791 Washington residents were affected. 295 days elapsed between awareness and notification. 2 days to identify the breach. 0 days to contain the breach.
Affected (this filing): 7,791
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.
Houser LLP reported a data breach to the Oregon Attorney General. The breach was reported on 2024-02-28. The breach occurred during 5/7/2023 - 5/9/2023. The breach was discovered on 1/18/2024. 326,386 individuals were affected. Notice was sent on 2/28/2024.
Affected (this filing): 326,386
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.
Affected (this filing): 2,217
Houser LLP, a law firm, notified consumers on Feb 28, 2024, of a May 2023 ransomware incident. Unauthorized actors encrypted files and exfiltrated data between May 7-9, 2023. Impacted data included names and variable data. Houser engaged forensic specialists, reported to law enforcement, and offered credit monitoring. Remediation included EDR, MFA, and phishing simulations.
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.
Houser LLP reported a data breach to the Indiana Attorney General. The breach occurred on 2023-05-07 and was reported on 2024-02-28. 7,308 Indiana residents were affected. 326,386 individuals affected in total.
Affected (this filing): 326,386
Houser LLP, a law firm, reported a ransomware incident where unauthorized access occurred May 7-9, 2023, resulting in file encryption and data exfiltration. The firm discovered the incident on May 9, 2023. The breach affected personal information of 2,217 New Hampshire residents. Houser engaged forensic specialists, notified the FBI, and implemented enhanced security controls including EDR, MFA, and phishing simulations. Credit monitoring services were offered to affected individuals.
Affected (this filing): 2,217
Houser LLP, a law firm, notified affected individuals on March 26, 2024, regarding a cybersecurity incident discovered on May 9, 2023. Unauthorized actors gained access to the network between May 7 and May 9, 2023, encrypting files and exfiltrating data containing names and other personal information. The 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 and EDR. Affected individuals were offered credit monitoring services.
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 variable personal information. The firm engaged forensic specialists, notified law enforcement, and implemented security enhancements including MFA and EDR. A supplemental notice was filed in California in March 2024.
An external system breach (hacking) occurred.
Affected (this filing): 1,717
Houser LLP, a law firm, notified consumers of a data breach where unauthorized actors encrypted files and exfiltrated data between May 7-9, 2023. The incident was discovered on May 9, 2023. Affected data included names and other personal information. Houser engaged forensic specialists, reported to law enforcement, and implemented enhanced security controls including MFA and EDR. Credit monitoring services were offered to affected individuals.
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.
Houser LLP, a law firm, disclosed a ransomware incident in April 2024. Unauthorized access occurred May 7-9, 2023, resulting in file encryption and data exfiltration. The actor claimed to have deleted stolen data. Affected data included names and variable data (likely PII). Houser engaged forensic specialists, notified law enforcement, and implemented enhanced security controls including MFA and EDR. Credit monitoring was offered to affected individuals.
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.
Affected (this filing): 2,217
Houser LLP, a law firm, notified affected individuals on April 12, 2024, regarding a ransomware incident discovered on May 9, 2023. Unauthorized actors encrypted files and exfiltrated data between May 7-9, 2023. The actor claimed to have deleted stolen data in June 2023. Affected information includes names and variable data (likely PII). Houser engaged forensic specialists, reported to law enforcement, and implemented security enhancements including MFA, EDR (RocketCyber), and phishing simulations. Credit monitoring was offered to affected individuals.
Houser LLP, a law firm, experienced an external system breach on May 7, 2023, discovered on January 18, 2024. The incident compromised names and financial account or card numbers with associated security codes or passwords. The breach affected 1,742 Maine residents. Houser LLP began notifying individuals on February 28, 2024, and offered 12 months of complimentary credit monitoring services through IDX.
Affected (this filing): 1,742