Walker Accounting & Tax Service, an accounting and tax preparation firm based in Walterboro, South Carolina, experienced a data breach in April 2026. The company detected suspicious activity on its network and unauthorized connections on April 3, 2026. This incident led to the potential exposure of client data and was followed by notifications to regulators and affected individuals in early May 2026.
The breach involved names, Social Security numbers, driver's licenses, financial account numbers, taxpayer identification numbers, and in some instances, medical information. A total of 3,308 individuals were affected, with 3,304 residents in South Carolina and 4 in Massachusetts. The company has contacted law enforcement, state tax authorities, and the IRS cybersecurity division, and is offering 24 months of free credit monitoring via Experian IdentityWorks.
Details surrounding data breaches can continue to emerge. Consumers who received a notice from Walker Accounting & Tax Service should review their credit and account activity.