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Security report for mastercard.eu

Mastercard · Finance · N/a

Medium risk. 3 critical or high findings in Security headers and SSL/TLS.

Security score

75/100

Risk levelMedium

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

Mastercard is a globally recognized technology company specializing in payment processing and financial services. The website reflects its leadership position in the payments industry, offering a wide range of services including consumer and commercial payments, cybersecurity, advisory, and AI-driven solutions. The site targets consumers, businesses, and governments worldwide, emphasizing secure, simple, and accessible transactions. Technically, the site is built on Adobe Experience Manager, leveraging modern web technologies and privacy compliance tools such as OneTrust. The infrastructure is hosted on Adobe's cloud platform, ensuring scalability and reliability. Security posture is strong with HTTPS, security headers, and cookie consent mechanisms, though explicit incident response and vulnerability disclosure information are not publicly visible. Overall, the site demonstrates high professionalism, excellent content quality, and good privacy compliance, though the absence of WHOIS data is a notable anomaly requiring monitoring.

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

3 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. 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

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

Keep watching mastercard.eu

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.

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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
72
Security headers
30
Email security
82
DNS health
80
Network security
100
GDPR outside view
88
Average
75

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

Mastercard operates in the finance and technology sectors as an essential entity with an enterprise scale. Its business model revolves around providing payment infrastructure and related services globally. The website content and navigation indicate a mature digital presence with comprehensive offerings for various customer segments including consumers, businesses, and governments. The company maintains partnerships with specialized services such as ID theft protection and inclusive growth initiatives. The lack of direct contact emails or phone numbers on the site suggests a focus on digital self-service and partner channels. The site’s consistent branding and trust signals reinforce Mastercard’s market position as a secure and innovative payments leader.

Security posture

The website exhibits a mature security posture with enforced HTTPS, multiple security headers, and a robust cookie consent framework via OneTrust. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the absence of a published incident response contact or vulnerability disclosure program limits transparency in security incident handling. The site complies with GDPR and other privacy regulations, as evidenced by comprehensive privacy and cookie policies. Overall, the security maturity is high but could be improved by adding explicit security contact points and vulnerability disclosure mechanisms.

Recommendations

  1. Publish an explicit incident response contact or security@ email address to improve transparency and trust.
  2. Implement and publish a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  3. Regularly audit and update WHOIS registration data to ensure transparency and domain legitimacy.
  4. Enhance visible security policy details on the website to educate users and partners.
  5. Continue leveraging modern security headers and privacy compliance tools to maintain high security standards.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Mastercard
Description
We connect and power a digital economy that benefits people, businesses and governments worldwide by making transactions safe, simple and accessible.
Key services
Consumer payments, Commercial payments, Money movement, Open finance, Advisory services, Cybersecurity & fraud prevention, Consumer acquisition & engagement, Insights & intelligence, Artificial Intelligence
Content quality
excellent
Branding
consistent

Technology

Stack
Adobe Experience Manager, OneTrust Cookie Consent, Adobe Launch (Tag Manager), Forms UI (Mastercard proprietary), Video.js
Frameworks
Adobe Experience Manager
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with OneTrust
  • No exposed sensitive data in HTML
  • Use of security headers

Analytics and tracking

Services
Adobe Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Adobe Launch, OneTrust
Marketing tools
Adobe Experience Manager, OneTrust Cookie Consent
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 use of Adobe Experience Manager CMS and OneTrust for privacy compliance
  3. No exposed sensitive data or obvious vulnerabilities detected
  4. WHOIS data is unavailable, which is unusual but not necessarily suspicious for a major brand
  5. Comprehensive privacy and cookie policies with consent mechanisms
  6. No direct company contact emails or phone numbers found in the HTML content
  7. No security.txt or explicit vulnerability disclosure found
Technical notes

Notes

The website is built on Adobe Experience Manager, a robust enterprise CMS platform, hosted on Adobe's cloud infrastructure. It uses OneTrust for cookie consent management and Adobe Launch for tag management and analytics. The site includes modern JavaScript modules and video.js for media handling. Performance is moderate with good mobile optimization and accessibility features. SEO is well addressed with proper meta tags and Open Graph data. The technical stack is modern and well maintained, supporting a high-quality user experience. Opportunities exist to further optimize performance and enhance security transparency.
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. 73/100Medium21 findingsView report
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