Toyota Financial Services (TFS) is warning customers it has suffered a data breach that exposed sensitive personal and financial data.

“Due to an attack on the systems, unauthorized persons gained access to personal data. Affected customers have now been informed. Toyota Kreditbank’s systems have been gradually restarted since December 1st.” reads a statement published by the company on its website.

Toyota Financial Services (TFS) is the finance arm of the Toyota Motor Corporation. It is a subsidiary of Toyota and provides a range of financial services to Toyota customers and dealerships worldwide. TFS offers various financial products, including auto loans, leases, and insurance solutions.