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Incident

Desert Wells Family Medicine

Incident posture

Attack window
May 2021
Location
United States of America
Status
Historical
CIA posture
Available to members
Updated
2025-10-24 00:00

Linked entities

Victim
Desert Wells Family Medicine
Threat actors
1 actor
Sources
1 source

Timeline

Occurred
May 2021
Discovered
Pending
Disclosed
Pending
Resolved
Pending

Summary

Desert Wells Family Medicine experienced a ransomware attack that compromised sensitive patient data, including names, addresses, Social Security numbers, dates of birth, driver's license details, and medical treatment information. The incident affected approximately 35,000 individuals, with attackers corrupting records prior to detection; the organization responded by engaging an incident response team and offering complimentary credit monitoring and identity theft protection services.

Motives

Detailed motive labels are available to members.

4 motives

TTPs

Detailed technique labels are available to members.

1 technique

Description

Desert Wells Family Medicine, an Arizona-based healthcare organization, discovered a ransomware attack on May 21, 2021, prompting immediate engagement of an incident response team. The attackers had corrupted patient records and organizational data prior to the discovery date. An investigation confirmed unauthorized access to sensitive information affecting 35,000 patients. Exposed data included full names combined with physical addresses, Social Security numbers, dates of birth, driver's license numbers, and details regarding medical treatments and diagnoses. The organization did not publicly identify the ransomware group responsible or specify the exact duration of unauthorized system access prior to detection. No ransom payment details or communication with threat actors were disclosed in breach notifications.

In response, Desert Wells Family Medicine initiated breach notification letters to affected individuals, offering complimentary credit monitoring and identity theft protection services. The organization advised patients to review financial statements, credit reports, and insurance explanations of benefits for suspicious activity. No specific technical containment measures or system restoration timelines were publicly outlined. The incident occurred amid heightened ransomware targeting of healthcare providers during the COVID-19 pandemic, with parallel attacks noted against other organizations like California-based LifeLong Medical Care. Security experts cited the event as reinforcing concerns about third-party vendor risks and ransomware operators increasingly exfiltrating sensitive health data beyond merely encrypting systems. Federal advisories from the FBI had previously warned healthcare entities about ransomware groups like Hive actively corrupting backup data to impede recovery efforts.

Sources

Sources available to members: 1 source.

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