DALLAS — Nearly 68,000 Texans and more than 800,000 people across the country may be impacted by a massive data breach at a Texas insurance administrative services company, filings show.

Landmark Admin announced the breach on Oct. 23 and notified impacted consumers.

The breach happened May 13 and information potentially gathered includes names, addresses, social security numbers, ID numbers, financial information such as credit or debit card numbers, and medical and health insurance information, according to the Texas and Maine Attorneys General Office.

“Upon discovering this incident Landmark immediately disconnected the affected systems and remote access to the network. Landmark also promptly engaged a specialized third-party cybersecurity firm to assist with securing the environment and to conduct a comprehensive forensic investigation to determine the nature and scope of the incident,” a copy of the notice to those affected filed with the Maine Attorney General’s Office reads.

The filing indicates Landmark noted unusual activity on its system on May 13.

“While the forensic investigation was underway, the unauthorized actor re-gained access to Landmark’s environment on June 17, 2024,” the filing continued. “The third-party cybersecurity firm again assisted with securing the environment while it also continued to conduct its forensic investigation. The forensic investigation concluded on or about July 24, 2024.”

Landmark Admin is a third-party administrator for insurance carriers, including Dallas-based Liberty Bankers Insurance Group. Liberty Bankers Insurance Group includes American Monumental Life Insurance Company, Pellerin Life Insurance Company, American Benefit Life Insurance Company, Liberty Bankers Life Insurance Company, Continental Mutual Insurance Company, and Capitol Life Insurance Company.

Landmark said it received personal information from people who were a producer, policy owner, insured, beneficiary or payor for insurance policies Landmark administered at one time, per the filing.

Landmark is offering credit monitoring and identity theft protection services, a $1 million insurance reimbursement policy and identity theft recovery services, according to the filing.