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Security report for mmwarburggruppe.com

M.M.Warburg & CO Gruppe GmbH · Finance · Germany

Medium risk. 4 critical or high findings in Security headers and GDPR outside view.

Security score

59/100

Risk levelMedium

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

The Warburg Gruppe website represents a well-established financial holding company specializing in private banking, asset management, and investment banking services. The group operates multiple subsidiaries, each with a clear market focus, serving high-net-worth individuals and institutional clients primarily in Germany. The website content is professionally presented, targeting a sophisticated audience with detailed information about the group and its subsidiaries. Technically, the site uses a Java-based CMS (OpenCms) and integrates modern marketing and analytics tools such as Usercentrics for consent management and Google Tag Manager. However, a critical security gap exists due to the absence of HTTPS/SSL, exposing users to potential risks. Privacy compliance is well addressed with comprehensive policies and consent mechanisms. Overall, the site demonstrates strong business credibility but requires urgent security improvements.

Scanned

NIS2 and GDPR posture

GDPR outside view
43/ 100 · High
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

4 findings rated critical or high. Fix these first.

  1. 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"

    • 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';…

  2. GDPR outside view

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

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • 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

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

Keep watching mmwarburggruppe.com

This scan found 18 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.

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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
50
Security headers
25
Email security
50
DNS health
85
Network security
100
GDPR outside view
43
Average
59

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

Warburg Gruppe holds a strong position in the German private banking sector with a history dating back to 1798. Its business model centers on independent, client-focused financial services with subsidiaries specializing in asset management, family office services, and equity research. The group leverages digital tools for marketing and compliance but lacks advanced security infrastructure. The presence of multiple subsidiaries with dedicated domains indicates a diversified service offering and a broad partnership ecosystem. The website's content and structure support clear communication of services and corporate values, enhancing trust and client engagement.

Security posture

The website's security posture is weak due to the lack of SSL/TLS encryption, which is a critical vulnerability for any financial institution. While security headers like HSTS and CSP are partially implemented, the absence of HTTPS negates their effectiveness. No incident response or security policy pages are found, and no vulnerability disclosure or security.txt files exist. The use of Usercentrics CMP indicates awareness of privacy regulations, but the technical security foundation needs urgent enhancement to protect sensitive client data and maintain trust.

Recommendations

  1. Implement a valid SSL/TLS certificate and enforce HTTPS site-wide immediately.
  2. Configure HSTS with includeSubDomains and preload flags to strengthen transport security.
  3. Transition Content Security Policy from report-only to enforcing mode to mitigate XSS risks.
  4. Publish a clear security policy and incident response contact information to improve transparency.
  5. Establish a vulnerability disclosure program or security.txt file to encourage responsible reporting.

Contact details published on the site

Addresses
Legal name
M.M.Warburg & CO Gruppe GmbH
Technical notes

Notes

The website is built on OpenCms running on an Apache server, using modern JavaScript libraries and third-party services for fonts (Typekit), analytics (Google Analytics, GTM), and consent management (Usercentrics). The site is mobile-optimized with responsive images and a clear navigation structure. However, performance metrics are unavailable, and the lack of HTTPS is a major technical deficiency. The DNS setup is standard but lacks DNSSEC and CAA records, which could enhance domain security. Overall, the technical infrastructure supports business needs but requires modernization in security and performance monitoring.
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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