Leonard Mulherin and Greene, PC

Leonard Mulherin and Greene, PC, a financial services provider, experienced an external system breach (hacking) between November 21 and December 2, 2024. An unauthorized actor accessed an email account using valid credentials, potentially exfiltrating Social Security Numbers, financial account numbers, and access information. The incident was discovered on December 2, 2024. LMG engaged forensic investigators and deactivated the account. Notices were sent to 3,385 affected individuals (22 in Maine) on August 13, 2025, offering 12 months of credit monitoring.

Leonard Mulherin and Greene, PC reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-08-13. 2,275 Massachusetts residents were affected.

Leonard Mulherin and Greene, PC reported a data breach to the Indiana Attorney General. The breach occurred on 2024-11-21 and was reported on 2025-08-13. 5 Indiana residents were affected. 3,385 individuals affected in total.

Leonard Mulherin and Greene, PC (LMG) reported a data incident discovered on December 2, 2024, involving unauthorized access to an email account via phishing. The breach potentially exposed Social Security Numbers, financial account numbers, and access information for 3 Nebraska residents. LMG deactivated the account, engaged forensic investigators, and mailed notification letters on August 13, 2025, offering 12 months of credit monitoring through TransUnion.

Leonard Mulherin and Greene, PC, an auditing, accounting, and tax services provider, detected unusual activity in an email account on December 2, 2024. An unauthorized actor potentially accessed and acquired information, including Social Security Numbers. The firm engaged internal IT and third-party forensics to investigate. 43 New Hampshire residents were notified on August 13, 2025, and offered 12 months of credit monitoring.