Cyber Incident Victim: Klickitat Valley Health
Date:
Feb 2025
Location:
United States of America
Summary
Klickitat Valley Health experienced a cybersecurity incident involving unauthorized access to its IT systems, resulting in the exfiltration of sensitive patient data. The compromised information included names, addresses, Social Security numbers, health insurance details, medical record identifiers, treatment specifics such as diagnoses and physician information, and service dates, though no financial account data was accessed. Following containment and an investigation supported by external cybersecurity experts and law enforcement, the organization notified affected individuals and offered complimentary credit monitoring services to those with exposed Social Security numbers, while establishing a dedicated call center for inquiries. The health provider reiterated its commitment to enhancing electronic system security to prevent future breaches.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 1 motive | 1 technique |
| Threat Actors | Type | Location |
|---|---|---|
| 0 actors | Available to members | Available to members |
Description
On February 23, 2025, Klickitat Valley Health (KVH) identified unusual activity within its IT systems, prompting immediate containment measures. The organization initiated an investigation with assistance from external cybersecurity experts and reported the incident to law enforcement. Forensic analysis determined that an unauthorized actor had exfiltrated copies of specific files from KVH systems five days earlier, on February 18, 2025. The compromised data included personally identifiable information and protected health information, with variations among affected individuals. Specifically exposed data elements encompassed full names, residential addresses, dates of birth, Social Security numbers, health insurance details, medical record numbers, and patient account identifiers. Clinical information related to care received at KVH facilities was also accessed, including dates of service, treating physician names, departmental information, diagnoses, and treatment details. Financial account data and payment card information remained unaffected by the breach.
KVH implemented organizational and technical response measures following the investigation, including mailing notification letters to all affected patients. Individuals whose Social Security numbers were compromised received offers for complimentary credit monitoring and identity theft protection services. The healthcare provider established a dedicated toll-free call center operational Monday through Friday from 6:00 a.m. to 6:00 p.m. Pacific Time to address patient inquiries regarding the incident. KVH publicly affirmed its commitment to enhancing electronic system security protocols and safeguarding patient data against future incidents. Patients received guidance to review healthcare statements and insurance documents for discrepancies, with instructions to report inaccuracies directly to their providers or insurers. The organization maintained continuity of clinical operations throughout the response period while cooperating with law enforcement agencies. No operational disruptions to patient care delivery were reported in conjunction with the cybersecurity event.