On December 14, 2023, Delta Dental of California (“Delta Dental”) filed a notice of data breach with the Attorney General of Maine after discovering that a secure file-transfer application used by the company, called MOVEit, contained a critical vulnerability. In this notice, Delta Dental explains that the incident resulted in an unauthorized party being able to access consumers’ sensitive information, which includes their names, addresses, Social Security numbers, driver’s license numbers, passport numbers, financial account information, health insurance policy numbers, and health information. Upon completing its investigation, Delta Dental began sending out data breach notification letters to all individuals whose information was affected by the recent data security incident.

If you received a data breach notification from Delta Dental of California, it is essential you understand what is at risk and what you can do about it. A data breach lawyer can help you learn more about how to protect yourself from becoming a victim of fraud or identity theft, as well as discuss your legal options following the Delta Dental of California MOVEit data breach. For more information, please see our recent piece on the topic here.

What Caused the Data Breach Affecting Delta Dental Customers?

The data breach affecting Delta Dental of California customers was only recently announced, and more information is expected soon. However, Delta Dental’s filing with the Attorney General of Maine provides some important information on what led up to the breach. According to this source, Delta Dental uses a secure file-transfer program called MOVEit. On June 1, 2023, Delta Dental learned that unauthorized actors were able to exploit a vulnerability within MOVEit, allowing them to access files stored within the application.

In response to learning about the MOVEit vulnerability, Delta Dental took steps to contain the incident. The company then launched an investigation to learn more about the nature and scope of the intrusion.

On July 6, 2023, the Delta Dental investigation confirmed that certain information stored on the company’s MOVEit platform was accessed and acquired by unauthorized parties between May 27, 2023 and May 30, 2023.

After learning that sensitive consumer data was accessible to an unauthorized party, Delta Dental of California reviewed the compromised files to determine what information was leaked and which consumers were impacted. While the breached information varies depending on the individual, it may include your name, address, Social Security number, driver’s license number, passport number, financial account information, health insurance policy numbers, and health information.

On December 14, 2023, Delta Dental of California sent out data breach letters to anyone who was affected by the recent data security incident. These letters should provide victims with a list of what information belonging to them was compromised.

More Information About Delta Dental of California

Founded in 1955, Delta Dental of California is an insurance company based out of San Francisco, California. Delta Dental provides a variety of cost-efficient insurance plans for patients & dentists throughout California. Delta Dental of California also operates a network of affiliates, including the Delta Dental Insurance Company, Delta Dental of Pennsylvania and Delta Dental of New York, Inc. In total, the company provides dental coverage to over 44 million people in 15 states, Washington, D.C., Puerto Rico, and the Virgin Islands. Delta Dental of California employs more than 2,250 people and generates approximately $2.8 billion in annual revenue.