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Security report for six-group.com

SIX · Finance · Switzerland

Low risk. 1 critical or high finding in SSL/TLS.

Security score

91/100

Risk levelLow

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

SIX is a leading Swiss financial market infrastructure provider connecting financial markets with infrastructure, data, and services. The company operates multiple specialized platforms including the Swiss Stock Exchange, securities services, banking services, and financial information products. Their website reflects a mature enterprise with a broad service portfolio targeting financial institutions and market participants. The digital presence is professional, well-structured, and optimized for multiple languages and devices. Technically, the site uses modern web technologies including Adobe Experience Manager CMS, Google Analytics, and OneTrust for privacy compliance. Security posture is strong with HTTPS enforced and secure login portals, though explicit security policies and vulnerability disclosures are not publicly visible. WHOIS data is unavailable, which slightly reduces transparency but is not uncommon for large enterprises. Overall, SIX demonstrates a high level of digital maturity and business credibility.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 100 · Low
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

1 finding rated critical or high. Fix these first.

  1. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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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
77
Security headers
90
Email security
98
DNS health
90
Network security
100
GDPR outside view
88
Average
91

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

SIX holds a dominant position in the Swiss financial market infrastructure sector, offering a comprehensive suite of services from stock exchange operations to securities clearing and banking portals. Their business model is service-oriented, focusing on providing critical infrastructure and data services to financial institutions. The company leverages partnerships for HR and procurement functions, indicating a well-integrated ecosystem. The website's extensive login portals and service-specific domains reflect operational complexity and a diversified revenue stream. SIX targets institutional clients and market participants, emphasizing trust, security, and regulatory compliance. Growth indicators include digital service expansion and integration of ESG data services.

Security posture

The website enforces HTTPS and integrates cookie consent mechanisms compliant with GDPR, indicating a strong baseline for privacy and security. Use of Google Tag Manager and Marketo Munchkin suggests advanced marketing analytics but also necessitates careful data governance. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. However, the absence of explicit security policies, incident response contacts, and vulnerability disclosure mechanisms like security.txt represents a gap in transparency and readiness communication. Security headers were not explicitly detected in the provided data, suggesting room for improvement. Overall, the security posture is solid but could benefit from enhanced public security documentation and disclosure.

Recommendations

  1. Publish a dedicated security policy and incident response page to improve transparency and trust.
  2. Implement and verify HTTP security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Provide a security.txt file to facilitate responsible vulnerability disclosure.
  4. Enhance visibility of contact information for security and privacy concerns.
  5. Regularly audit third-party scripts and tracking tools to ensure compliance with privacy regulations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
SIX
Description
SIX connects financial markets with infrastructure, data and services powering the future of finance.
Key services
Swiss Stock Exchange, Securities Services, Financial Information, Clearing and Settlement, Banking Services
Content quality
excellent
Branding
consistent

Technology

Stack
Google Analytics, Google Tag Manager, OneTrust Cookie Consent, Marketo Munchkin, JavaScript, CSS, HTML5
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS usage
  • Cookie consent with opt-in
  • No exposed sensitive data in HTML
  • Use of secure login portals

Analytics and tracking

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

Advertising

Tracking pixels
Marketo Munchkin
Marketing tools
Marketo
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenge.
  2. Professional corporate website for a major Swiss financial market infrastructure provider.
  3. Multiple secure login portals for different services indicate operational maturity.
  4. Strong privacy and cookie consent mechanisms implemented.
  5. No direct contact emails or phone numbers found on the homepage content provided.
  6. WHOIS data unavailable publicly, possibly due to privacy or registry restrictions.
  7. No security.txt or explicit vulnerability disclosure found.
  8. No explicit security policy or incident response information publicly visible.
  9. Use of modern tracking and marketing tools with consent.
  10. No suspicious or malicious content detected.
Technical notes

Notes

The website is built on a modern CMS platform, likely Adobe Experience Manager, supporting multilingual content and responsive design. It uses standard web technologies including HTML5, CSS, and JavaScript, with integrations for analytics and marketing automation. Performance appears moderate with preconnect and preload hints for optimization. Accessibility features such as ARIA labels and screen reader text are present, indicating good inclusivity. SEO is supported by meta tags, Open Graph, and JSON-LD structured data. The site hosts multiple secure login portals for various services, reflecting a complex technical infrastructure. Opportunities exist to enhance security headers and publish more detailed technical and security documentation.
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. 90/100Low19 findingsView report
  2. 75/100Medium2 findings · partial scanView report
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