Brown, Jake & McDaniel, P.C., a certified public accounting firm based in Knoxville, Tennessee that has served clients throughout East Tennessee since 1980, has disclosed a data security incident involving unauthorized access to its computer network. Companies entrusted with clients’ financial and personal records carry a responsibility to safeguard that information, and firms across the accounting and financial services industry increasingly find themselves the target of network intrusions.
Brown, Jake & McDaniel’s Data Breach Investigation
According to the firm’s notification letter, Brown, Jake & McDaniel became aware of unusual activity affecting its network environment on January 20, 2026, and immediately began an investigation with the assistance of independent cybersecurity experts. That investigation determined that an unauthorized actor had gained access to the firm’s network between January 13 and January 21, 2026, and potentially downloaded certain files stored there during that window.
Following containment of the incident, Brown, Jake & McDaniel conducted a comprehensive review of the affected files to determine whose information may have been involved. The firm has stated that certain individuals’ personal information may have been contained in the files accessed or downloaded by the unauthorized actor, and it worked to identify contact information for those individuals so it could provide notice. The firm also reported the incident to law enforcement.
Accounting firms are attractive targets for cybercriminals precisely because of the volume of sensitive financial and identifying information they routinely collect and retain on behalf of clients, including Social Security numbers, tax records, and banking details submitted for return preparation and financial statement work. A single successful intrusion into a firm’s network can expose records belonging to hundreds or thousands of individual clients built up over years of engagements, making these firms a comparatively efficient target compared to breaching individual consumers directly.
The breach was formally disclosed to the South Carolina Attorney General’s office on September 3, 2026, with the filing identifying 1,087 South Carolina residents as affected. Brown, Jake & McDaniel also notified other state regulators, reflecting that its affected client base was spread across multiple states rather than concentrated in a single jurisdiction. Multi-state notification filings like this are a normal part of the regulatory process when a firm’s clients live in different states, not an indication of inconsistent reporting.
Notification letters of this kind are frequently sent out weeks or months after a breach is first detected, because firms typically spend that time confirming exactly whose data was affected and gathering current contact information before mailing individualized notices, as Brown, Jake & McDaniel describes doing here. The gap between the January 2026 intrusion and the later-2026 notification mailing is consistent with that typical timeline, not evidence of delay for its own sake.
When Did This Breach Occur?
Brown, Jake & McDaniel says the unauthorized network access occurred between January 13 and January 21, 2026, and that it first detected the unusual activity on January 20, 2026. The firm completed its review and began mailing notification letters afterward, with its regulatory filing to the South Carolina Attorney General dated September 3, 2026.
What Information Was Breached?
Brown, Jake & McDaniel’s notification letter states that the files the unauthorized actor potentially downloaded may have included each recipient’s name in combination with certain other personal information specific to that individual. The firm has not publicly itemized a single universal list of data types affected across all recipients; individuals who receive a direct letter should review it carefully, since it is expected to identify the specific categories of information involved in their own case.
What You Can Do
Brown, Jake & McDaniel is offering affected individuals complimentary credit monitoring and identity theft protection services through TransUnion’s Cyberscout program, along with proactive fraud assistance. If you received a letter from the firm, it includes an enrollment code and instructions for activating these services, which must generally be used within 90 days of the letter’s date. It is also worth reviewing your financial account statements and credit reports closely, watching for suspicious activity, and reporting anything unusual to your bank, your state Attorney General, or the Federal Trade Commission.
File a Data Breach Lawsuit Against Brown, Jake & McDaniel
If you received a notice from Brown, Jake & McDaniel about this breach, keep it as documentation, since it can help establish that your information was involved if you decide to pursue legal action.
Contact us at Class Action U, where we’ll connect you with a lawyer skilled in class action lawsuits. If you’ve been contacted about this breach, received notice, or discovered you were impacted, fill out our quick, easy, and secure form to sign up. There is no cost to reach out to our legal partner and no obligation after speaking with someone from our team.
