Skip to main content

Security report for cmb.fr

Crédit Mutuel de Bretagne · Finance · France

Medium risk. 6 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

71/100

Risk levelMedium

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

Crédit Mutuel de Bretagne is a regional cooperative and mutual bank serving individuals, professionals, enterprises, associations, and collectives primarily in Brittany, France. The website offers comprehensive banking services including account management, online account opening, and card services, positioning itself as a trusted regional financial institution under the Crédit Mutuel Arkéa group. The site is professionally designed with consistent branding and clear navigation tailored to its diverse audience segments. Technically, the website leverages modern web technologies including JavaScript, CSS, Bootstrap, and Jalios CMS. It integrates advanced consent management via Didomi and analytics through Piano Analytics and Google Tag Manager, reflecting a mature digital infrastructure. The site is mobile-optimized and accessible, with good SEO practices and structured data enhancing search visibility. From a security perspective, the website enforces HTTPS, employs cookie consent mechanisms aligned with GDPR, and avoids exposing sensitive data. While explicit security headers are not fully visible in the HTML, the overall posture is strong with no evident vulnerabilities. The absence of WHOIS data is likely due to privacy protection, which is justified for a financial institution. No WAF or blocking mechanisms were detected, allowing full content access. Overall, the website demonstrates a high level of professionalism, security, and compliance suitable for a major regional bank. Strategic recommendations include enhancing visible security headers, publishing clear security and incident response policies, and maintaining vigilance on third-party scripts to sustain trust and compliance.

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

6 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: Google Analytics, 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 X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

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

Keep watching cmb.fr

This scan found 19 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

€25per month

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

Email alerts on material changes and an exportable JSON history of every change.

Billed monthly to your card. Cancel anytime. The full timeline opens with your unlock code.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
77
Security headers
80
Email security
70
DNS health
75
Network security
100
GDPR outside view
25
Average
71

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

Crédit Mutuel de Bretagne operates as a cooperative bank with a strong regional presence in Brittany, France. Its business model focuses on mutual banking services tailored to individuals and various professional sectors. The bank benefits from the backing of Crédit Mutuel Arkéa, enhancing its market position. The website reflects a multi-segment approach with dedicated portals for enterprises, professionals, associations, and collectives, indicating diversified revenue streams. The integration of advanced analytics and consent management tools suggests a data-driven approach to customer engagement and regulatory compliance. The partnership ecosystem includes related domains serving specific customer segments, reinforcing a comprehensive service offering. Growth indicators include digital account opening and online service accessibility, positioning the bank competitively in the regional market.

Security posture

The website exhibits a mature security posture with mandatory HTTPS encryption and a robust cookie consent mechanism compliant with GDPR. The use of Didomi for consent management and Piano Analytics for tracking indicates controlled data collection practices. No exposed sensitive information or vulnerable libraries were detected in the HTML content. However, explicit security headers such as X-Frame-Options and X-Content-Type-Options are not clearly present and should be verified server-side. The absence of a public security policy or incident response contact limits transparency but is common in banking websites. Overall, the site balances user experience with security and privacy, though improvements in visible security documentation and header implementation are recommended.

Recommendations

  1. Implement and verify comprehensive security headers including X-Frame-Options and X-Content-Type-Options to enhance protection against clickjacking and MIME sniffing.
  2. Publish a clear security policy and incident response contact information to improve transparency and user trust.
  3. Regularly audit and update third-party scripts and libraries to mitigate potential vulnerabilities.
  4. Enhance visible privacy compliance disclosures, including data retention policies and user rights information.
  5. Maintain and improve mobile accessibility and performance to ensure consistent user experience across devices.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Crédit Mutuel de Bretagne
Description
Crédit Mutuel de Bretagne : une banque proche de vous et de vos projets. Gérez vos comptes, accédez à nos services et ouvrez votre compte en ligne.
Key services
Account management, Online account opening, Bank cards, Agency locator, Customer support
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, CSS, HTML5, Google Tag Manager, Didomi Consent SDK, Piano Analytics, Bootstrap
Frameworks
Jalios CMS
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent management for cookies
  • No exposed sensitive data in HTML
  • Secure login links open in new tabs with rel='noopener noreferrer'

Analytics and tracking

Services
Piano Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Piano Analytics, Didomi Consent SDK
Marketing tools
Didomi Consent Management, Piano Analytics
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenge
  2. Comprehensive cookie consent mechanism implemented
  3. No explicit contact emails found in HTML, but contact forms and phone links present
  4. Strong use of structured data for SEO and organization info
  5. Multiple external domains related to the parent group and services
  6. No visible security vulnerabilities or exposed sensitive data
  7. WHOIS data unavailable, likely due to privacy protection or AFNIC policy
Technical notes

Notes

The website is built on the Jalios CMS platform, utilizing modern front-end technologies such as Bootstrap for responsive design and JavaScript for interactivity. It integrates third-party services including Google Tag Manager, Piano Analytics, and Didomi for analytics and consent management. The site demonstrates good mobile optimization and accessibility features, including ARIA roles and keyboard navigation aids. Performance is moderate, with potential for optimization in loading times and script management. The technical infrastructure supports a professional banking service with secure login portals and multi-segment navigation. Opportunities exist to enhance security headers and streamline third-party dependencies to reduce technical debt and improve resilience.
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

Earlier scans of this domain

  1. 75/100Medium19 findingsView report
Reviews of this site

Share your experience with cmb.fr. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review cmb.fr.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.