Active Legal Case · Letter recipients may be eligible to join a class action lawsuit against Stephen Mathias & Co
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If you received a data breach notification letter from Stephen Mathias & Co, send us your details and a member of the legal team will review your request. There is no cost or obligation.
No fee unless you recover.
Sending this form does not create an attorney-client relationship.
Stephen Mathias & Co appears to be a professional law firm, which typically maintains sensitive client records, confidential case documentation, and private financial details in the regular course of business. As a result of operations, the firm routinely collects and stores personal information such as client names, contact information, Social Security numbers, case or matter information, and financial records. In 2026, the company officially reported a cybersecurity incident to the Illinois Attorney General regarding this security event. If you received a data breach notification letter in the mail, it means your personal information was involved, and the letter is intended to help you understand the nature of the incident and the protective steps being made available to you.
About the Notice You Received
If you received a data breach notification letter, notice, or mailing from Stephen Mathias & Co, this communication confirms that your personal information was exposed or accessed without authorization.
Under Illinois law (815 ILCS 530/10), companies are legally required to send a written breach notification to every affected resident. This may arrive as a letter in the mail, a formal notification mailing, or an email notice — all are equally valid as evidence of harm.
Your Stephen Mathias & Co notification letter is more than an informational warning. It is legally required documentation — and the starting point for a potential class action claim against Stephen Mathias & Co.
This notice may also be referred to as:
It Takes 2 Minutes
Tell us you received a notification letter from Stephen Mathias & Co. No need to have the letter handy — just your name and contact info.
A licensed data breach attorney will review your eligibility within 24 hours and contact you directly. Completely free, no obligation.
If you qualify, your attorney handles everything. You pay nothing unless your case results in a recovery on your behalf.
Why This Breach Matters
Companies across every industry collect and store personal data as part of normal business operations. When that data is compromised, affected individuals face risks ranging from targeted phishing attacks and identity theft to unauthorized account access and financial fraud.
Illinois residents are protected by 815 ILCS 530/10, which gives you the right to pursue legal remedies when a company fails to adequately protect your data.
Common Questions
What is the Stephen Mathias & Co data breach notification letter?
The Stephen Mathias & Co notification letter, notice, or mailing is a legally required communication confirming that your personal information was involved in a data breach. Illinois law requires companies to send this written notice to every affected resident. The letter or mailing you received is official documentation of the breach and serves as evidence for a potential class action claim.
I received a Stephen Mathias & Co breach notice — does it mean my data was stolen?
Yes. Receiving a Stephen Mathias & Co data breach letter, notice, or notification mailing means your personal information was accessed or exposed without authorization. Companies are only required to send these notices when a confirmed breach occurred affecting your data specifically.
Do I need the original notification letter from Stephen Mathias & Co?
No. You do not need to have the letter, notice, or mailing on hand to request a case review. Your name, contact info, and the name of the company are enough to get started.
How much does it cost to join?
Nothing upfront. Our representation is 100% contingency-based — we only collect a fee if your case results in compensation. If there is no recovery, you owe nothing.
Is there a deadline to act after receiving my Stephen Mathias & Co notification letter?
Yes. Illinois and federal law impose statutes of limitations on data breach claims. The sooner you act after receiving your Stephen Mathias & Co letter or notice, the better positioned you are to recover.
Stephen Mathias & Co was required by law to notify you because your personal data was compromised. That letter is evidence of harm — and the foundation for a legal claim.
Data breach claims have deadlines. The sooner you act after receiving your letter, the better positioned you are to participate and recover.
By joining with other Stephen Mathias & Co letter recipients, you have access to legal resources that would be too costly to pursue individually.
You never pay attorney fees out of pocket. Our representation is 100% contingency-based — we only get paid if you recover compensation.
No Fee Unless You Recover
A member of the legal team is available to answer your questions. Or scroll to the top to submit your case review form — free and no obligation.
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