February 18, 2026

Alpine Lumber Company understands the importance of protecting information. We are informing individuals that we recently identified and addressed a data security incident involving some of their information. This notice explains the incident, measures we have taken, and additional steps you may consider taking in response.

We determined on December 22, 2025, that certain devices in our network were encrypted with ransomware. When we learned of the incident, we immediately implemented our response protocols, took measures to contain the activity, and launched an investigation with the support of third-party cybersecurity professionals. We also notified law enforcement and are supporting its investigation.

The evidence showed that between December 14, 2025 and December 22, 2025, an unauthorized actor viewed and obtained files stored on a file server in our network. We conducted a careful review of the files and, on February 5, 2026, determined that one or more of the files contained information maintained for employment purposes.

The file(s) contained individuals’ names, addresses, Social Security numbers, dates of birth, and health insurance plan enrollment information. The files also may have contained individuals’ health insurance policy numbers, medical information, driver’s license numbers, passport numbers, other government-issued identification numbers, financial account information, and payment card information.

We are mailing letters to the individuals involved and have arranged for eligible individuals to receive a complimentary membership in a credit monitoring and identity protection service. If you believe your information was involved but do not receive a letter by March 4, 2026 , please call our dedicated call center for this incident at 844-425-3608, Monday through Friday, between 9:00 a.m. and 9:00 p.m., Eastern Time, excluding holidays.

We take this incident very seriously. To help prevent something like this from happening again, we have taken and are taking steps to enhance our existing security measures.