Dr. Atadan Egemen Koyuncu

Dr. Atadan Egemen Koyuncu operates a medical office in Turkey that provides healthcare services to patients. The office is situated at the practitioner's headquarters location in the country and functions as a private clinical practice. Services offered include medical consultations and related patient care typical of a doctor's office. The organisation is directly owned and managed by Dr. Atadan Egemen Koyuncu, with no indication of a parent company or subsidiary structure in the available information. The practice maintains a patient information system to support its clinical operations and record keeping.

In July 2020 the office suffered a ransomware attack that compromised its patient information system, rendering the system inaccessible. Authorities estimated that approximately ten thousand patients were affected by the breach, although the exact number could not be confirmed due to the system's unavailability. The intrusion was detected one day after the initial cyber incident occurred. Turkey's data protection authority publicly disclosed the incident but did not specify whether recovery of the patient data was feasible. The authority also did not identify the ransomware variant responsible for the attack. The breach was recorded in the authority's public notice as a data breach affecting a doctors' office in Turkey.