Incident Score: Analysis & Impact (BAS1776076895)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Basic-Fit's Breach and lateral movement inside company's environment.
- Overview of affected data sets, including SSNs and PHI, and why they materially increase incident severity.
- How Rankiteo’s incident engine converts technical details into a normalized incident score.
- How this cyber incident impacts Basic-Fit Rankiteo cyber scoring and cyber rating.
- Rankiteo’s MITRE ATT&CK correlation analysis for this incident, with associated confidence level.
Full Incident Analysis Transcript
In this Rankiteo incident briefing, we review the Basic-Fit breach identified under incident ID BAS1776076895.
The analysis begins with a detailed overview of Basic-Fit's information like the linkedin page: https://www.linkedin.com/company/basic-fit, the number of followers: 41343, the industry type: Wellness and Fitness Services and the number of employees: 4031 employees
After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 684 and after the incident was 487 with a difference of -197 which is could be a good indicator of the severity and impact of the incident.
In the next step of the video, we will analyze in more details the incident and the impact it had on Basic-Fit and their customers.
Basic-Fit recently reported "Basic-Fit Data Breach Affecting Millions of European Gym Members", a noteworthy cybersecurity incident.
Basic-Fit, one of Europe’s largest gym chains with over 2,150 locations across 12 countries and 5.8 million members, has suffered a cyberattack resulting in the theft of sensitive customer data.
The disruption is felt across the environment, and exposing Personal information (names, addresses, email addresses, phone numbers, dates of birth, bank details), membership data (subscription numbers, payment status, recent gym visits).
In response, teams activated the incident response plan, moved swiftly to contain the threat with measures like Breach contained within minutes, and stakeholders are being briefed through Affected individuals notified.
The case underscores how teams are taking away lessons such as The incident underscores the risks of data breaches, particularly the potential for targeted phishing attacks using stolen personal and financial information, and recommending next steps like Enhanced monitoring for phishing attempts, customer education on recognizing fraudulent communications, and strengthened data protection measures for sensitive financial information, with advisories going out to stakeholders covering Affected members were notified of the breach and potential risks.
Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.
The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.
MITRE ATT&CK® Correlation Analysis
Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Exploit Public-Facing Application (T1190) with moderate confidence (60%), supported by evidence indicating cyberattack resulting in the theft of sensitive customer data and Valid Accounts (T1078) with moderate confidence (50%), supported by evidence indicating breach contained within minutes (suggests possible insider/credential misuse). Under the Credential Access tactic, the analysis identified Modify Authentication Process (T1556) with lower confidence (40%), supported by evidence indicating bank details and personal identifiers exposed (possible credential harvesting). Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating names, addresses, email addresses, phone numbers, dates of birth, bank details compromised and Data from Information Repositories (T1213) with moderate to high confidence (70%), supported by evidence indicating membership data such as subscription numbers, payment status, recent gym visits. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating data breach affecting millions of members (data exfiltration confirmed) and Transfer Data to Cloud Account (T1537) with moderate confidence (50%), supported by evidence indicating no evidence of data misuse (suggests possible staging for exfiltration). Under the Impact tactic, the analysis identified Data Destruction (T1485) with lower confidence (30%), supported by evidence indicating breach contained within minutes (no evidence of destruction) and Data Manipulation: Transmitted Data Manipulation (T1565.002) with lower confidence (40%), supported by evidence indicating iBAN numbers exposed (potential for financial fraud). These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Basic-Fit Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/basic-fit/incident/BAS1776076895
- Basic-Fit CyberSecurity Rating page: https://www.rankiteo.com/company/basic-fit
- Basic-Fit Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/bas1776076895-basic-fit-breach-april-2026/
- Basic-Fit CyberSecurity Score History: https://www.rankiteo.com/company/basic-fit/history
- Basic-Fit CyberSecurity Incident Source: https://timesofindia.indiatimes.com/technology/tech-news/one-of-europes-biggest-gym-chain-basic-fit-hacked-data-of-lakhs-of-members-leaked-what-members-need-to-do-urgently/articleshow/130231443.cms
- Rankiteo A.I CyberSecurity Rating methodology: https://www.rankiteo.com/Images/rankiteo_algo.pdf
- Rankiteo TPRM Scoring methodology: https://static.rankiteo.com/model/rankiteo_tprm_methodology.pdf