Tieu Dental Data Breach Lawsuit Investigation
If you received a data-breach letter from Tieu Dental, your personal information may have been exposed during a July 2025 cyber-attack on the dental practice’s network. Review the facts below and take immediate steps to secure your identity. Contact us for a free, no-obligation case evaluation to learn your legal options.
What Happened?
Tieu Dental Corporation (“Tieu Dental”) detected unauthorized access to its computer network and immediately began an investigation with third-party cybersecurity specialists. The inquiry confirmed that an external actor accessed the environment between July 28 – 29, 2025 and may have removed files containing patient information. The practice completed a file-by-file review and, on January 11, 2026, determined that certain personal data was involved. California authorities received notice on March 5, 2026.
Information Exposed
According to the breach notice filed with the California Attorney General, the compromised files contained:
Full name
The letter did not reference any additional data elements.
Tieu Dental’s Response
Isolated and secured affected systems.
Engaged external cybersecurity professionals for forensic analysis.
Notified regulators and affected individuals.
Offered a complimentary one-year membership to Experian IdentityWorks for identity-protection and credit-monitoring services.
Steps You Can Take Now
Enroll in the free Experian IdentityWorks membership using the instructions in your letter.
Review bank, credit-card and insurance statements for unfamiliar transactions.
Order a free credit report and consider placing a fraud alert or security freeze on your credit file.
Keep copies of any suspicious correspondence or charges; they may support a future claim.
Key Dates
Breach period: July 28 – 29, 2025
Breach discovered: January 11, 2026
Regulator notice filed: March 5, 2026
Company Overview
Tieu Dental Corporation (Tieu Dental) provides oral and maxillofacial surgery services in California.
Website: sbayoms.com
Headquarters: 281 E Hamilton Ave Ste 6, Campbell, CA, US
Industry: Oral and Maxillofacial Surgery
Sources
Impacted Entities
Frequently Asked Questions
I received a data breach letter from Tieu Dental — what should I do?
Follow the enrollment instructions for Experian IdentityWorks, monitor your financial accounts and credit reports, and contact a data-breach attorney to discuss your rights.
How do I submit a claim related to the Tieu Dental data breach?
Complete the contact form below for a free case review. An attorney will assess your eligibility for compensation.
What information did the Tieu Dental breach expose?
The notice states that full names were present in the accessed files. No additional elements were listed.
Did Tieu Dental offer credit monitoring, and for how long?
Yes. The practice is providing a complimentary one-year membership to Experian IdentityWorks.
How many people were affected by the Tieu Dental breach?
Tieu Dental has not yet publicly disclosed the total number of impacted individuals.
How can I get the official breach notice (PDF) for Tieu Dental?
You can download it directly from the California Attorney General’s website using the link above.
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