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Security report for cmcm.lu

CMCM / Caisse Médico-Complémentaire Mutualiste · Healthcare · Luxembourg

Medium risk. 7 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

65/100

Risk levelMedium

0–100, higher is better. How it is calculated

CMCM (Caisse Médico-Complémentaire Mutualiste) is a large mutual health insurance provider based in Luxembourg, serving approximately 145,000 families and 280,000 individuals. The organization emphasizes solidarity and non-exclusion, offering comprehensive complementary health coverage without medical exams or additional family fees. Their key services include hospitalization coverage, dental and optical benefits, and business solutions. The website is professionally designed using Drupal 9, with good mobile optimization and accessibility features. GDPR compliance is evident through a detailed privacy policy and cookie consent mechanism. Security posture is solid with HTTPS and no visible vulnerabilities, though explicit security policies and incident response contacts are absent. Overall, the domain registration data aligns well with the business claims, indicating a trustworthy and legitimate entity.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 100 · Critical
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

7 findings rated critical or high. Fix these first.

  1. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

    • High

      Third-party services without privacy policy

      Detected services: Facebook, Twitter, LinkedIn, YouTube

      What to do: Document all third-party data sharing in your privacy policy

  2. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

Need hands-on remediation? Email guard@offseq.com

Keep watching cmcm.lu

This scan found 22 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

Daily monitoring

Recommended

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  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
52
Security headers
55
Email security
85
DNS health
75
Network security
100
GDPR outside view
25
Average
65

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

CMCM holds a strong market position as a major mutual health insurer in Luxembourg, targeting families and individuals seeking complementary health insurance. Their business model is based on mutual solidarity, offering a broad range of health-related services including hospitalization, preventive care, dental, and optical coverage. The organization maintains an active digital presence with multiple subdomains and social media channels, enhancing customer engagement. The website content and structure reflect a mature and professional operation with clear navigation and relevant information. No parent or subsidiary companies were identified, suggesting CMCM operates as an independent entity. The absence of terms of service and security policy pages indicates areas for potential improvement in transparency and compliance.

Security posture

The website demonstrates a good security baseline with enforced HTTPS and a cookie consent mechanism compliant with GDPR. No security headers were explicitly detected in the provided data, and there is no published security policy or incident response information, which are recommended best practices. No vulnerabilities or exposed sensitive data were found in the HTML content. The use of Drupal 9 suggests the platform benefits from recent security updates, but continuous monitoring and enhancement of HTTP security headers (e.g., CSP, HSTS) would strengthen the security posture. The lack of a vulnerability disclosure policy or security.txt file limits transparency for security researchers. Overall, the security maturity is moderate to good but could be improved with formal policies and enhanced headers.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Provide clear incident response contact information to facilitate reporting of security issues.
  3. Implement a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  4. Enhance HTTP security headers such as Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options.
  5. Regularly audit third-party scripts and dependencies to mitigate potential vulnerabilities.

Contact details published on the site

Addresses
Legal name
CMCM / Caisse Médico-Complémentaire Mutualiste
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
CMCM / Caisse Médico-Complémentaire Mutualiste
Description
La CMCM est une mutuelle comptant environ 145,000 familles membres et 280,000 affiliés, basée sur solidarité et non-exclusion, offrant des prestations de santé complémentaires sans examen médical ni frais supplémentaires pour la famille.
Key services
Régime commun (hospitalization, medical analyses, home care, assistance and repatriation worldwide), Prestaplus (first-class hospitalization, osteopathy, orthopedics, preventive medicine), Denta & Optiplus (dental and optical coverage including orthodontics, implants, lenses, surgery), Business Solutions
Content quality
excellent
Branding
consistent

Technology

Stack
Drupal 9, Typekit fonts, jQuery (implied by bxSlider usage), tarteaucitron.js (GDPR cookie consent)
Frameworks
Drupal CMS
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Transparency
basic

Site quality

Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website is fully accessible and professionally designed.
  2. Content is comprehensive and well-structured in French with language options.
  3. Strong presence of GDPR compliance and cookie consent.
  4. No visible security policy or incident response information.
  5. No terms of service page detected.
  6. Multiple social media channels linked and active.
  7. WHOIS data consistent with professional domain registration.
  8. No suspicious or malicious content detected.
Technical notes

Notes

The website is built on Drupal 9, a modern and widely supported CMS, ensuring a solid technical foundation. The use of Typekit fonts and bxSlider for UI elements indicates attention to user experience. GDPR compliance is supported by the integration of tarteaucitron.js for cookie consent management. Performance appears moderate, with no explicit performance optimization indicators but a responsive design and mobile optimization are present. The site structure is clear with multilingual support (French, German, English). No hosting provider information was detected. Opportunities exist to improve technical SEO and accessibility further by adding ARIA landmarks and enhancing metadata. Overall, the technical infrastructure is stable and suitable for the organization's needs.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

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