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Incident

Questcare Medical Services

Incident posture

Attack window
Feb 2019
Location
United States of America
Status
Historical
CIA posture
Available to members
Updated
2025-11-05 00:00

Linked entities

Victim
Questcare Medical Services
Threat actors
0 actors
Sources
1 source

Timeline

Occurred
Feb 2019
Discovered
Pending
Disclosed
Pending
Resolved
Pending

Summary

Questcare Medical Services experienced a security breach involving unauthorized access to an employee's email account, potentially compromising personal information of patients in the North Texas region. The organization initiated an internal investigation, notified affected individuals, and implemented enhanced security measures to mitigate future risks following the incident.

Motives

Detailed motive labels are available to members.

1 motive

TTPs

Detailed technique labels are available to members.

1 technique

Description

On February 13, 2019, Questcare Medical Services identified unauthorized access to an employee's email account by a third party, triggering a security incident affecting patients in the Dallas/Fort Worth/Arlington region of North Texas. The organization initiated an internal investigation following the discovery but did not publicly disclose the breach until April 12, 2019. The compromised email account contained personal information belonging to patients, though the specific data elements exposed were not detailed in public statements. Questcare did not reveal how the unauthorized access was detected or whether the breach involved malware, phishing, or other attack vectors. The timeline between the initial intrusion (February 13) and public notification (April 12) suggests a 58-day investigation period before confirmation of impacted individuals.

Questcare formally notified potentially affected patients following its internal review, though the total number of individuals impacted remains undisclosed. The organization implemented additional security measures to prevent future incidents but provided no technical specifics regarding these enhancements. Geographic impact was confined to patients in North Texas, with no evidence suggesting broader national exposure. No ransomware demands, data misuse, or fraudulent activity tied to the breach were reported in available sources. The incident description parallels a contemporaneous breach at Dakota County, Minnesota, though no direct connection between the two events was established. Questcare's public response consisted of a brief statement acknowledging the incident without detailing remediation offers to affected patients such as credit monitoring.

Sources

Sources available to members: 1 source.

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