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Analyze » Basic-Fit » BAS1776068889

Incident Score: Analysis & Impact (BAS1776068889)

The details regarding individual company incidents & reports gives you full view from every side.

Rankiteo Score Impact Analysis

Rankiteo Incident Impact-88
Company Score Before Incident769 / 1000
Company Score After Incident681 / 1000
INCIDENT NUMBERBAS1776068889
Type of Cyber IncidentBreach
ATTACK VECTORUnauthorized Access
DATA EXPOSEDPersonal and financial data, including...
INCIDENT DATE31/01/2026
STATUSpublished

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 BAS1776068889.

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 769 and after the incident was 681 with a difference of -88 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 Exposes Personal and Financial Data of 200,000 Dutch Members", a noteworthy cybersecurity incident.

Europe’s largest budget fitness chain, Basic-Fit, has reported a data breach affecting approximately 200,000 members in the Netherlands, with potential exposure across its 1,300+ clubs in seven European countries.

The disruption is felt across the environment, affecting Club check-in and visit-registration system, and exposing Personal and financial data, including names, home addresses, email addresses, phone numbers, dates of birth, and bank account details (IBAN numbers), with nearly 200,000 records at risk.

In response, and stakeholders are being briefed through Affected members advised to monitor accounts for suspicious activity and remain vigilant against phishing attempts.

The case underscores how with advisories going out to stakeholders covering Affected members advised to monitor their accounts for suspicious activity and remain vigilant against phishing attempts.

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 Valid Accounts (T1078) with moderate to high confidence (80%), supported by evidence indicating unauthorized access to the company’s club check-in and visit-registration system and Exploit Public-Facing Application (T1190) with moderate confidence (50%), supported by evidence indicating systems storing bulk customer identity and financial data. Under the Credential Access tactic, the analysis identified Credentials from Infrastructure (T1552.006) with moderate to high confidence (70%), supported by evidence indicating iBAN numbers used for recurring membership payments were compromised. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating names, home addresses, email addresses, phone numbers, dates of birth, bank account details exposed. 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 approximately 200,000 members. Under the Impact tactic, the analysis identified Data Destruction (T1485) with lower confidence (30%), supported by evidence indicating no details on malware’s origin or extent of breach and Stored Data Manipulation (T1565.001) with moderate confidence (60%), supported by evidence indicating high risk of SEPA direct debit fraud and financial impersonation. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.

Initial Access
Valid Accounts (80%)
Exploit Public-Facing Application (50%)
Credential Access
Credentials from Infrastructure (70%)
Collection
Data from Local System (90%)
Exfiltration
Exfiltration Over C2 Channel (70%)
Impact
Data Destruction (30%)
Stored Data Manipulation (60%)