The Mercadien PC Certified Public Accountants Data Breach: Incident Facts and Free Case Review
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.
- State
- South Carolina
- Reported
- February 23, 2026
What to do if you were affected
These general steps can help limit the risk of identity theft and fraud after any data breach.
Stay alert to targeted scams
Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.
Keep your notification letter
Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.
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