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Bansley and Kiener
Data Breach

The Lyon Firm is actively involved in Security Breach & Data Theft Lawsuits on behalf of consumers nationwide
Nationwide Success

Data Breach Lawyer

Investigating the Bansley and Kiener Data Breach & Data Theft Claims

Thank you for considering The Lyon Firm. At this time, we are not accepting plaintiffs related to this specific consumer issue. However, if you would like to be contacted in the future, please complete the contact form. By completing the form you will be contacted if the Firm begins accepting new cases on this matter, and you will also be included in firm news alerts related to important consumer safety and privacy issues to help keep you informed about related issues.

If you have had your personal information impacted by the Bansley data breach, contact a data privacy attorney to investigate your claim. You may be able to file a class action data breach lawsuit to compensate you for your time, financial losses, and future risk of identity theft.

Bansley and Kiener, a Chicago-based accounting firm that conducts payroll compliance engagements for health, pension, and other benefit plans in the Midwest, has announced a data breach incident that dates back to 2020.

In recent data breach notification letters, Bansley and Kiener details a network security incident that may have involved a great deal of personal information. Reports are suggesting over 274,000 individuals nationwide may have been impacted by the data breach.

Bansley says in a statement that on December 10, 2020, they identified a data security incident that encrypted certain systems. At the time, the company thought the breach was fully contained, then months later learned data had been stolen. On May 24, 2021, Bansley and Kiener learned that files containing personal information, including names and Social Security numbers, had been exfiltrated by an unauthorized user.

Bansley is offering victims access to complimentary one-year subscriptions to credit monitoring, fraud consultation, and identity restoration services. Plaintiffs and attorneys believe more compensation is necessary to properly resolve the data theft issue.


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Joseph Lyon has 17 years of experience representing individuals in complex litigation matters. He has represented individuals in every state against many of the largest companies in the world.

The Firm focuses on single-event civil cases and class actions involving corporate neglect & fraud, toxic exposure, product defects & recalls, medical malpractice, and invasion of privacy.


The Firm offers contingency fees, advancing all costs of the litigation, and accepting the full financial risk, allowing our clients full access to the legal system while reducing the financial stress while they focus on their healthcare and financial needs.