We are taking claims for the Leonard Mulherin and Greene, PC data breach—an event which exposed sensitive data of countless individuals. If you interacted with Leonard Mulherin and Greene, PC, your information was likely hacked by cybercriminals. That’s serious. They can open accounts in your name, file for your tax return, take your identity, contact your employer, mess up your credit, etc. If the Leonard Mulherin and Greene, PC data breach concerns you, take action. We can help you.
Cole & Van Note is investigating Leonard Mulherin and Greene, PC a tax, accounting, and business consulting firm in Boston, Massachusetts. The firm offers a selection of accounting, auditing, tax and advisory services to a wide variety of clients and industries. [1]
On August 13, 2025, Leonard Mulherin and Greene began notifying individuals about a data breach that occurred between November 21, 2024 and December 2, 2024. This data security incident exposed the personally identifiable information of over 3,000 individuals, including Social Security numbers, and financial account numbers. [2]
Considering the number of people impacted by this event, Cole & Van Note is considering legal action on behalf of those affected. If you have received notice of this data security incident, we urge you to contact us so we can help you with your case.
Cole & Van Note is investigating Leonard Mulherin and Greene, PC a tax, accounting, and business consulting firm in Boston, Massachusetts. The firm offers a selection of accounting, auditing, tax and advisory services to a wide variety of clients and industries. [1]
On August 13, 2025, Leonard Mulherin and Greene began notifying individuals about a data breach that occurred between November 21, 2024 and December 2, 2024. This data security incident exposed the personally identifiable information of over 3,000 individuals, including Social Security numbers, and financial account numbers. [2]
Considering the number of people impacted by this event, Cole & Van Note is considering legal action on behalf of those affected. If you have received notice of this data security incident, we urge you to contact us so we can help you with your case.
With over 30 years of experience, our firm has represented millions of data breach clients in similar data breach cases getting big settlements and protecting their personal information.
































Data breaches happen in various ways. Here’s a general overview of common methods:
Data breaches happen in various ways. Here’s a general overview of common methods:


For more details and updates about data breaches, visit our Data Breach Center. People don’t take data breaches as seriously as they should. Don’t wait until your information is sold or used to make a phone call.
Additional resources include our Hacker Checker, the HIPAA Journal and the U.S. Department of Health and Human Services. Let us direct you to the information you need.