Utsunomiya Central Clinic

Utsunomiya Central Clinic, a cancer treatment center in Japan, suffered a cybersecurity breach due to a ransomware attack by the Qilin gang. Services were disrupted and data of nearly 300,000 individuals, including patients and staff, was exfiltrated. Compromised information included names, birthdates, medical details, and contact information. Although Social Security numbers and financial details were not affected, exposed health information such as radiology images and medical files was confirmed. Individuals affected are being cautioned about potential fraud.

Source: https://www.scworld.com/brief/disruptive-qilin-ransomware-attack-hits-japanese-cancer-treatment-center

TPRM report: https://scoringcyber.rankiteo.com/company/hackmanac

"id": "hac209030425",
"linkid": "hackmanac",
"type": "Ransomware",
"date": "3/2025",
"severity": "100",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"

{'affected_entities': [{'customers_affected': 'Nearly 300,000 individuals',
                        'industry': 'Healthcare',
                        'location': 'Japan',
                        'name': 'Utsunomiya Central Clinic',
                        'type': 'Healthcare'}],
 'customer_advisories': 'Cautioning affected individuals about potential fraud',
 'data_breach': {'data_exfiltration': 'True',
                 'file_types_exposed': ['radiology images', 'medical files'],
                 'number_of_records_exposed': 'Nearly 300,000',
                 'personally_identifiable_information': ['names',
                                                         'birthdates',
                                                         'contact information'],
                 'sensitivity_of_data': 'High',
                 'type_of_data_compromised': ['names',
                                              'birthdates',
                                              'medical details',
                                              'contact information',
                                              'radiology images',
                                              'medical files']},
 'description': 'Utsunomiya Central Clinic, a cancer treatment center in '
                'Japan, suffered a cybersecurity breach due to a ransomware '
                'attack by the Qilin gang. Services were disrupted and data of '
                'nearly 300,000 individuals, including patients and staff, was '
                'exfiltrated. Compromised information included names, '
                'birthdates, medical details, and contact information. '
                'Although Social Security numbers and financial details were '
                'not affected, exposed health information such as radiology '
                'images and medical files was confirmed. Individuals affected '
                'are being cautioned about potential fraud.',
 'impact': {'data_compromised': ['names',
                                 'birthdates',
                                 'medical details',
                                 'contact information',
                                 'radiology images',
                                 'medical files'],
            'identity_theft_risk': 'Potential fraud',
            'operational_impact': 'Services were disrupted'},
 'ransomware': {'data_exfiltration': 'True', 'ransomware_strain': 'Qilin'},
 'response': {'communication_strategy': 'Cautioning affected individuals about '
                                        'potential fraud'},
 'threat_actor': 'Qilin gang',
 'title': 'Utsunomiya Central Clinic Ransomware Attack',
 'type': 'Ransomware'}