A.Y. McDonald Industries, Inc. Data Breach Lawsuit Investigation
On October 21, 2025, A.Y. McDonald Industries, Inc. began notifying individuals that sensitive personal data had been accessed without authorization. If you received a breach letter, you may be entitled to compensation and complimentary identity-protection services. Complete the form on this page to join the investigation and protect your rights.
Key Details at a Glance
- Breach discovered: September 19, 2025
- Unauthorized access occurred: On or about January 12, 2025
- Consumer notices mailed: October 21, 2025
- Total individuals affected: 1 (Massachusetts resident)
- Sensitive data involved: Social Security numbers, driver’s license numbers, financial account information
What Happened?
A.Y. McDonald Industries, Inc. detected a network security incident that began on January 12, 2025. Following a detailed investigation assisted by external cybersecurity professionals, the company confirmed on September 19, 2025 that certain files containing personal information were accessed or acquired by an unauthorized party.
Information Exposed
The manual file review determined that the following data elements were included in the compromised files:
- Social Security numbers
- Driver’s license numbers
- Financial account information
Company Response
According to the notice filed with the Massachusetts Attorney General, A.Y. McDonald Industries, Inc. has:
- Engaged external cybersecurity experts to conduct a thorough investigation.
- Notified federal law-enforcement authorities.
- Reviewed and enhanced internal policies, employee training, and security monitoring tools.
- Provided detailed guidance to affected individuals on placing fraud alerts, security freezes, and obtaining free credit reports.
Steps You Can Take Now
Even if only one person is confirmed impacted so far, regulators recommend acting quickly after any data breach:
- Place a fraud alert or security freeze with the nationwide credit bureaus.
- Order and review your free annual credit reports for signs of unfamiliar activity.
- Monitor bank and credit-card statements for unauthorized transactions.
- Retain all breach-related correspondence; it may be required to prove eligibility for future remedies.
Lawsuit Investigation – How to Participate
JointheCase is investigating potential legal claims on behalf of individuals whose personal information was compromised in the A.Y. McDonald Industries, Inc. breach. Possible compensation could include reimbursement of out-of-pocket expenses, credit-monitoring costs, and statutory damages.
If you received a notice letter dated October 21, 2025, submit your information today to learn about your legal options.
Company Overview
- Website: aymcdonald.com
- Headquarters: 4800 Chavenelle Road, Dubuque, IA, USA
- Industry: Manufacturing
- Year Founded: 1856
- Employees: ~700
Frequently Asked Questions
What happened in the A.Y. McDonald Industries, Inc. data breach?
An unauthorized actor accessed the company’s network on January 12, 2025. The intrusion was discovered on September 19, 2025, leading to a review that confirmed exposure of sensitive personal data.
How many people were affected by the A.Y. McDonald Industries, Inc. breach?
The Massachusetts filing lists 1 affected individual. Additional impacted individuals could be identified as the investigation continues.
What personal information was exposed?
Social Security numbers, driver’s license numbers, and financial account information.
Did A.Y. McDonald Industries, Inc. offer free credit monitoring?
The notice instructs recipients on credit monitoring steps but does not specify a complimentary monitoring service.
Can I sue A.Y. McDonald Industries, Inc. over the data breach?
You may have legal claims for damages such as time spent monitoring accounts, unreimbursed fraud losses, and statutory privacy violations. Complete our form to discuss your eligibility.
How do I join the A.Y. McDonald Industries, Inc. data breach lawsuit investigation?
Use the secure submission form on this page. Our legal team will review your information and contact you about next steps.