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Investigation OpenTexas AG filing · June 30, 2026

MCBS LLC Data Breach from September 2025 Impacting Personal Information

MCBS LLC, a medical claims billing service, reported a data breach to the Texas Attorney General in June 2026, confirming unauthorized access to systems. The incident, which occurred in September 2025, involved personal information managed by the company. Individuals who received a notification letter should review it for details on how their data was affected.

State
Texas
Breach date
September 22, 2025
Reported
June 30, 2026

MCBS LLC, based in Texas, officially reported a data security incident to the state's Attorney General on June 30, 2026. This notification confirms that unauthorized access to their systems occurred on or around September 22, 2025, with an ongoing investigation into the scope and impact of the event.

As a professional medical claims billing service, MCBS LLC typically handles administrative and financial records essential for healthcare practices. These operations involve collecting and storing a wide range of personal information relevant to billing and insurance processes. The regulatory filing indicates that an unauthorized party gained access to systems containing this type of information.

The specific categories of personal information exposed in this breach are not detailed in the public filing. Individuals who have received a direct notification letter from MCBS LLC are advised to carefully read it. This letter should provide precise information about what data was involved, along with any identity protection services offered.

It is always prudent to remain vigilant following any data security incident. Consider reviewing your account statements and credit reports for any suspicious activity. You may also place a fraud alert or security freeze on your credit files to help prevent unauthorized new accounts from being opened in your name.

Stay cautious of unsolicited communications, especially those asking for personal details, as these could be phishing attempts. Promptly report any unusual activity to the relevant financial institutions or authorities.

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