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Mosley Glick O’Brien Data Breach Lawsuit Investigation
Shamis & Gentile P.A., one of the nation's premier class action law firms specializing in data breach cases, is investigating the Mosley Glick O’Brien data breach.
If you were affected by the data breach, your sensitive personally identifiable information may have been exposed, and you may be eligible for compensation.
About Mosley Glick O’Brien
Mosley Glick O’Brien Inc. is a certified public accounting firm based in Maumee, Ohio, previously headquartered in Toledo. The firm has been serving clients since 2008, providing accounting, tax, assurance, and management consulting services. Their focus is on small- to medium-sized businesses in industries such as construction, manufacturing, real estate, transportation, professional services, logistics, startups, non-profits and individuals.
The firm offers a range of services including financial reporting, tax preparation and planning, audits, business valuations, and industry-specific expertise.
What Happened?
In February 2025, Mosley Glick O’Brien discovered it had fallen victim to a sophisticated ransomware attack.
The incident was identified on Feb. 19, 2025, and prompted the firm to work with internal IT and third-party forensic specialists to secure their network and restore operations.
The attackers, identified as the BianLian ransomware group, claimed responsibility and alleged they obtained 1.2 TB of sensitive data, including firm and client financials, Quickbooks data, HR data, business contracts, PII and PHI records, and email correspondence.
A comprehensive investigation and review of the affected files concluded on Feb. 24, 2026. Mosley Glick O’Brien began notifying individuals whose information may have been impacted by written mail, as well as posting the breach to its website.
The types of information exposed in this breach may include:
Information Exposed:
- Names
- Social Security numbers
- Driver’s license or state identification numbers
- Dates of birth
- Medical diagnosis or treatment information
- Health insurance information
- Financial account numbers
- Payment card numbers (with or without access information)
- Individual tax identification numbers
You May Be Entitled to Compensation
Lawyers are ready to help individuals who may have been affected by the Mosley Glick O’Brien data breach. If your personal information was exposed, you may be eligible to join a class action lawsuit and seek compensation for damages, including time spent monitoring accounts, losses from identity theft, or emotional distress.
To find out if you qualify, complete the below form to join the lawsuit and protect your rights.
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