EISNER ADVISORY GROUP LLC

Eisner Advisory Group LLC notified consumers of a data breach occurring September 4-9, 2023. Unauthorized access was limited to specific files containing names and other personal information. The investigation is concluded. Eisner notified regulators and law enforcement, and is offering 12-24 months of credit monitoring. No evidence of misuse was found.

Eisner Advisory Group LLC notified the NH AG of unauthorized access to limited personal information of 130 NH residents between Sept 4-9, 2023. The breach was detected on Sept 9, 2023. Eisner completed its review on Feb 13, 2025, and notified residents on April 8, 2025, offering credit monitoring services.

Eisner Advisory Group LLC reported a ransomware incident affecting 2,121 Washington residents. Unauthorized access occurred Sept 4-9, 2023. Data included names, SSNs, driver's licenses, financial accounts, and medical info. Eisner notified law enforcement, regulators, and credit bureaus, and provided 12 months of credit monitoring.

Eisner Advisory Group LLC notified the Iowa Attorney General of a data breach affecting 1,764 Iowa residents. Unauthorized access occurred between September 4 and September 9, 2023. Compromised data included names, SSNs, driver's licenses, financial account info, and medical/health insurance information. Eisner investigated, implemented safeguards, notified law enforcement and credit bureaus, and provided 12 months of credit monitoring to affected individuals.

Eisner Advisory Group LLC reported a data breach to the Oregon Attorney General. The breach was reported on 2025-04-08. 84,795 individuals were affected.

Eisner Advisory Group LLC notified Nebraska residents that unauthorized access occurred between September 4-9, 2023, affecting 971 individuals. The incident involved the exfiltration of names, SSNs, financial account info, DOB, and medical/health insurance data. Eisner discovered the activity on September 9, 2023, completed its review in February 2025, and sent notifications on April 8, 2025. Response included law enforcement notification, credit monitoring, and enhanced employee training.

Eisner Advisory Group LLC reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-04-08. 527 Massachusetts residents were affected.

Eisner Advisory Group LLC notified Montana residents of a data breach where unauthorized access occurred Sept 4-9, 2023. The incident involved the exfiltration of names and other personal info. Eisner discovered suspicious activity in Sept 2023, completed its investigation in Feb 2025, and sent notifications on April 8, 2025. Credit monitoring is offered.

Eisner Advisory Group LLC reported a data breach to the Indiana Attorney General. The breach occurred on 2023-09-24 and was reported on 2025-04-08. 626 Indiana residents were affected. 84,795 individuals affected in total.

Eisner Advisory Group LLC notified the California Attorney General of an incident where an unknown actor gained unauthorized access to files between September 4 and September 9, 2023. The company became aware of suspicious activity in September 2023. In February 2025, the company completed its review and determined that affected individuals' names and other personal information were involved. The investigation is concluded. The company notified regulators and law enforcement and is offering credit monitoring services.

Eisner Advisory Group LLC reported an external system breach (hacking) occurring between September 4 and 9, 2023. The incident compromised names, SSNs, driver's licenses, financial account info, DOB, and medical/insurance data for 84,795 individuals, including 82 in Maine. Eisner discovered the suspicious activity on September 9, 2023, and notified affected individuals on April 8, 2025. The investigation is concluded.

EISNER ADVISORY GROUP LLC filed a data-breach notice with the Illinois Attorney General in April 2025 (case 25-04-073). The register records the breach as discovered on September 9, 2023. Personal information types reported: drivers license, financial account number, medical information, ssn. Illinois does not publish the number of people affected — 815 ILCS 530/10 permits the Attorney General to publish only the entity name, the types of personal information and the date range.