Evergreen Treatment Services

Evergreen Treatment Services (ETS) is a nonprofit substance abuse treatment provider founded in Seattle, United States. The organization delivers addiction services through multiple clinics, operating within the healthcare sector with a specific focus on patient care for substance use disorders. Its core mission involves providing treatment and support, which inherently requires managing highly sensitive personal health information under strict confidentiality obligations. The scale of its operations is indicated by its service to a significant patient population, though exact figures beyond the known incident are not provided. ETS functions as an independent entity without mention of parent or subsidiary relationships, maintaining its nonprofit status while fulfilling a critical role in community health services.

A defining aspect of ETS's recent operational context is the cybersecurity incident documented on February 10, 2023. This event involved unauthorized access to its IT systems, resulting in the compromise of sensitive patient data including names, addresses, dates of birth, Social Security numbers, and treatment information. The breach affected 21,325 individuals, a quantifiable impact that underscores the organization's data handling responsibilities. In response, ETS demonstrated established incident response protocols by notifying impacted patients, engaging third-party cybersecurity experts for investigation, and reviewing compromised files. The organization also fulfilled regulatory requirements by submitting a mandatory disclosure to federal health authorities. This handling of a data breach highlights its operational competency in navigating legal and compliance frameworks specific to healthcare, particularly regarding patient privacy under regulations governing protected health information. The incident serves as a notable case study in the sector's cybersecurity challenges, illustrating the vulnerabilities even specialized treatment providers face and the prescribed actions following a breach.