Sports Club NAS
| Primary URL | Location | Industry | www[.]nas[.]co[.]jp |
Country
Japan
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Hospitality & Leisure
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Profile
Sports Club NAS operates as a sports and fitness organization in Japan, offering members access to exercise facilities and related activity programs. The organization provides services aimed at promoting physical health and wellness among its clientele. Its offerings include access to training equipment and group activity sessions. Sports Club NAS serves individuals seeking fitness opportunities within a club setting. The organization's primary function is to manage membership subscriptions and deliver related fitness services.
Sports Club NAS maintains a presence at nine locations across Japan, serving a membership base that exceeds fifty thousand individuals. The organization's membership management systems store personal data for these members, including names and contact details, with financial information recorded for approximately thirty-five thousand of them. The ransomware incident reported on April 2, 2021, affected the membership management systems at all nine locations, disrupting normal operations. During the incident, personal data of over fifty thousand members was compromised, and the financial details of roughly thirty-five thousand individuals were exposed. Limited employee data was also affected in the breach.
The organization's dependence on computerized membership management systems was highlighted by the ransomware attack, which targeted the software handling its large member database. Sports Club NAS reported that the ransomware variant involved was not designed to exfiltrate information, and subsequent investigations found no evidence of external data leaks or ransom demands. No secondary misuse of the compromised data was confirmed following the incident. In response, the organization established a dedicated call center to handle member inquiries and concerns related to the breach. External researchers continued to monitor for any potential disclosures while Sports Club NAS prioritized system recovery and conducted impact assessments. These actions reflect the organization's focus on safeguarding member information and restoring operational continuity after a cybersecurity event.