Phishing Attack on Legacy Health Results In Exposure of 38,000 Patients’ PHI

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Legacy Health has discovered an unauthorized individual has gained access to its email system and the protected health information (PHI) of approximately 38,000 patients.

The Portland, OR-based health system operates two regional hospitals, four community hospitals, and 70 clinics in Oregon, Southwest Washington, and the and the Mid-Willamette Valley and is the second largest health system in the Portland Metro Area.

The data breach was discovered on June 21, 2018, although the email accounts were first accessed by an unauthorized individual in May. Legacy Health determined that access was gained to the email accounts as a result of employees being duped by phishing emails.

Email breaches can take a considerable amount of time to investigate. While tools are available to scan email accounts for protected health information, many of the emails in compromised accounts need to be individually checked, which can involve manual checks of hundreds of thousands of messages.  According to Legacy Health Spokesperson Kelly Love, “We’ve been moving at as fast a pace as we can to be thorough and clear.”

To speed up the investigation, Legacy Health retained a leading computer forensics firm to investigate and assist with the breach response. That investigation revealed information such as names, birth dates, health insurance details, medical information relating to care provided at Legacy Health facilities, billing information, Driver’s license numbers and Social Security numbers may all have been accessed. Legacy Health is not aware of any patient information being misused.

Notifications were sent to affected individuals on August 20 and all patients whose driver’s license number or Social Security number was exposed have been offered credit monitoring services for 12 months without charge.

A media notice was provided to The Oregonian and the Department of Health and Human Services has been notified inside the 60-day window permitted by the HIPAA Breach Notification Rule. Steps are also being taken to improve email security and prevent any further breaches of PHI.

Author: HIPAA Journal

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