Understanding your Mercadien PC Certified Public Accountants data breach notification letter
If a Mercadien PC Certified Public Accountants letter arrived in your mailbox, here is what it means, why you received it, and the free steps you can take right now.
Why you received this letter
Mercadien PC Certified Public Accountants is a professional services firm specializing in accounting, tax preparation, and financial consulting. Given the nature of their business, the firm routinely collects and maintains highly sensitive personal and financial data, including tax filings, Social Security numbers, and detailed banking information required for audit and advisory services. In 2026, the company officially reported a data security incident to the South Carolina Attorney General, indicating that unauthorized parties may have accessed their systems. If you received a data breach notification letter from Mercadien, it means your personal information was identified as potentially exposed during this event. This notice serves to inform you of the incident and provides guidance on the steps you should take to protect your identity and financial assets.
What to do after the letter
Confirm the notice is genuine
A legitimate Mercadien PC Certified Public Accountants notice references the specific incident reported to the South Carolina Attorney General and describes which categories of your information were involved. Compare the letter against the public filing before acting on any links or phone numbers it contains.
Keep the letter — it is your proof of connection
The notification letter is the document that ties your personal information to this incident. Keep the original and photograph it. If you later request a case review, this letter is the strongest evidence that you were among the affected individuals.
Protect your accounts and credit
Depending on what was exposed, consider a free credit freeze with all three bureaus, new passwords for reused credentials, and monitoring of financial statements. These steps are free and do not require you to wait for anyone's permission.
Find out whether you have a claim
Whether the Mercadien PC Certified Public Accountants breach gives you a legal claim depends on the facts. A free, no-obligation case review will tell you where you stand — there is no cost and no commitment to find out.
This page summarizes a data breach reported to the South Carolina Attorney General for informational purposes and is attorney advertising. It does not create an attorney-client relationship. DataBreachLegalCenter.com does not provide legal advice through this page.