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Security report for cboe.com

Cboe Global Markets · Finance · N/a

Medium risk. 5 critical or high findings in SSL/TLS, Security headers and 1 other check.

Security score

68/100

Risk levelMedium

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

Cboe Global Markets operates as a leading global market infrastructure provider, offering a broad range of tradable products including equities, options, futures, volatility indices, and cryptocurrency derivatives. The company targets institutional investors, traders, and financial professionals worldwide, providing advanced trading, clearing, and investment solutions. Their website reflects a mature enterprise with comprehensive educational resources, market insights, and data services, positioning them as a market leader in the financial sector. Technically, the website is built on modern frameworks such as Next.js and React, delivering a responsive, accessible, and well-structured user experience. The site employs multiple third-party analytics and marketing tools, including Google Analytics, Microsoft Clarity, and various advertising pixels, indicating a sophisticated digital marketing strategy. Performance is moderate with good mobile optimization and SEO practices. From a security perspective, the site enforces HTTPS with strong security headers and no visible vulnerabilities or exposed sensitive data. However, explicit security policies, incident response details, and vulnerability disclosure programs are not publicly available, representing an area for improvement. Privacy compliance is well addressed with comprehensive privacy and cookie policies and consent mechanisms, aligned with GDPR requirements. Overall, the website is professional, trustworthy, and safe for general audiences. The absence of WHOIS data reduces transparency but does not detract significantly from the site's legitimacy given its professional presentation and market position. Strategic recommendations include publishing detailed security and incident response policies, enhancing direct contact information, and maintaining vigilance on third-party scripts for security and privacy compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
58/ 100 · Medium
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

5 findings 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
    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

  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';…

  3. 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

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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
42
Security headers
40
Email security
85
DNS health
80
Network security
100
GDPR outside view
58
Average
68

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Brand lookalikes

Add-on

Domains that imitate cboe.com and could be used for phishing or spoofed email, tracked in OffSeq Breach.

Tracked
65
Registered
65
Resolving
65
High or critical
0

Last checked 2026-06-29

Masked preview

  • cr•••.comMediumbitsquatting
  • cf•••.comMediumbitsquatting
  • cb•••.comMediumbitsquatting

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Technical appendix

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

Business context

Business profile

Cboe Global Markets holds a strong market position as a premier operator of financial market infrastructure and tradable products. Their business model centers on providing trading platforms, market data, clearing services, and educational content to a global audience of market participants. Revenue streams likely include transaction fees, data subscriptions, and technology services. The company demonstrates growth through diverse product offerings including emerging asset classes like cryptocurrency derivatives. Their partnership ecosystem includes major financial and technology service providers, as evidenced by integrated marketing and analytics tools. The website's comprehensive content and professional branding reflect a mature enterprise with a clear focus on institutional and retail market segments.

Security posture

The website exhibits a mature security posture with enforced HTTPS, robust security headers, and no detected vulnerabilities or exposed sensitive information. The use of modern frameworks and secure coding practices is evident. However, the lack of publicly available security policies, incident response contacts, and vulnerability disclosure mechanisms indicates gaps in transparency and readiness communication. Compliance with privacy regulations is strong, but further enhancements in security culture visibility and incident preparedness would benefit the organization. Overall, the security posture is strong but could be improved by publishing explicit security governance documents and providing clear channels for security incident reporting.

Recommendations

  1. Publish a dedicated security policy and incident response plan on the website to enhance transparency and trust.
  2. Establish and publicize a vulnerability disclosure or bug bounty program to encourage responsible reporting of security issues.
  3. Provide clear contact information for the Data Protection Officer or security team to improve GDPR compliance and incident communication.
  4. Regularly audit and minimize third-party scripts to reduce privacy and security risks associated with external dependencies.
  5. Enhance direct company contact details (emails, phone numbers) on the website to improve business credibility and user trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Cboe Global Markets
Description
Cboe Global Markets is a leading provider of market infrastructure and tradable products, delivering cutting-edge trading, clearing, and investment solutions globally.
Key services
Trading platforms for equities, options, futures, Market data services, Clearing services, Investment solutions, Education and insights
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, JavaScript, CSS, SVG
Frameworks
Next.js
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of modern security headers
  • No exposed sensitive data detected
  • Secure forms with no visible vulnerabilities

Analytics and tracking

Services
Google Analytics, Microsoft Clarity
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Twitter Ads, Facebook Ads, LinkedIn Ads, Reddit Ads
Tracking pixels
LinkedIn Insight, Twitter Universal Website Tag, Facebook Pixel, Salesloft, Demandbase, Reddit Pixel, Microsoft Clarity
Marketing tools
Demandbase, Salesloft
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 rich content and navigation.
  2. Strong focus on financial markets, trading products, and education.
  3. Use of multiple third-party marketing and analytics tools.
  4. No direct company contact emails or phone numbers found in HTML content.
  5. No explicit security or incident response policies published.
  6. WHOIS data unavailable, which reduces transparency but site appears legitimate.
  7. No adult or questionable content detected.
  8. Good mobile optimization and accessibility features.
Technical notes

Notes

The website is built using modern web technologies including React and Next.js, enabling server-side rendering and improved performance. The use of SVG graphics and responsive design techniques ensures high-quality visuals across devices. Multiple external scripts support analytics, marketing, and user tracking, reflecting a sophisticated digital marketing infrastructure. Performance is moderate, with room for optimization in loading times and script management. Accessibility features are implemented to a good standard, supporting diverse user needs. The technical stack is robust and scalable, suitable for an enterprise-level financial services provider, though ongoing monitoring of third-party dependencies is recommended to mitigate security risks.
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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