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Security report for magenta.at

T-Mobile Austria GmbH · Telecommunications · Austria

High risk. 6 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

49/100

Risk levelHigh

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

Magenta.at is the official website of T-Mobile Austria GmbH, a leading telecommunications provider in Austria offering mobile, internet, TV, and bundled services for both consumers and business customers. The website is professionally designed with rich content, clear navigation, and strong branding consistency. It targets a broad audience including private and business users, providing detailed product offerings and customer support resources. Technically, the site is built on Adobe Experience Manager with modern web technologies including AngularJS and jQuery, and integrates marketing and analytics tools such as Google Tag Manager and Usercentrics CMP. However, the website suffers from a critical security issue: the SSL certificate is invalid and no TLS protocols are enabled, severely impacting the security posture. Security headers are partially implemented, but improvements are needed to ensure secure communications. Privacy and cookie policies are present and GDPR compliant, with consent mechanisms in place. Contact information is available primarily via phone and web forms, but no direct company emails are published. Overall, the site is trustworthy and legitimate, with WHOIS data consistent with the company identity. Strategic security improvements are recommended to restore full HTTPS security and enhance user trust.

Scanned

NIS2 and GDPR posture

GDPR outside view
0/ 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

    • Critical

      No HTTPS encryption

      GDPR requires appropriate security measures for personal data

      What to do: Implement SSL/TLS certificate for HTTPS

    • 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

  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.

    • Critical

      No HTTPS Encryption

      Website does not use HTTPS encryption, making all data transmission vulnerable to interception

      What to do: Implement SSL/TLS certificate and redirect all HTTP traffic to HTTPS

  3. 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 magenta.at

This scan found 16 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.

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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
0
Security headers
55
Email security
50
DNS health
90
Network security
100
GDPR outside view
0
Average
49

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

T-Mobile Austria GmbH operates as a major telecommunications entity in Austria, providing a comprehensive portfolio of mobile tariffs, internet services, TV packages, and combined offers. The business model focuses on both consumer and business segments, leveraging a strong brand presence and extensive network infrastructure. The website reflects a mature digital presence with integrated marketing and analytics, supporting customer acquisition and retention. Partnerships with related domains such as t-mobile.at and s-budget-mobile.at indicate a broad ecosystem. The company emphasizes customer service with multiple contact channels and self-service options. Market positioning is strong, supported by awards and trust signals visible on the site. Growth is supported by continuous product updates and promotional campaigns.

Security posture

The current security posture of magenta.at is weakened by the absence of a valid SSL certificate and lack of enabled TLS protocols, which are critical for secure web communications. While security headers like HSTS, Content Security Policy, and X-Content-Type-Options are present, the HSTS header is not fully enabled (no includeSubDomains or preload). No known SSL vulnerabilities such as Heartbleed or POODLE are detected, but the invalid certificate and missing TLS support pose a high risk of interception and man-in-the-middle attacks. No public incident response or security policy pages were found, indicating potential gaps in transparency. The site uses secure login overlays redirecting to trusted domains, which mitigates some risk. Overall, urgent remediation of SSL/TLS configuration is necessary to meet industry best practices and regulatory requirements.

Recommendations

  1. Immediately fix the SSL certificate to be valid and trusted by browsers to enable HTTPS.
  2. Enable modern TLS protocols (TLS 1.2 and TLS 1.3) and disable deprecated protocols.
  3. Configure strong cipher suites and enable OCSP stapling and session resumption for performance and security.
  4. Enhance HSTS header to include subdomains and preload directive if applicable.
  5. Publish a clear security policy and incident response information to improve transparency and trust.
  6. Regularly audit third-party scripts and libraries to avoid vulnerabilities.
  7. Maintain and update privacy and cookie consent mechanisms to ensure ongoing GDPR compliance.
Technical notes

Notes

The website is built on Adobe Experience Manager CMS, using AngularJS and jQuery for frontend interactivity. It employs Google Tag Manager and Usercentrics CMP for analytics and consent management. Images are lazy loaded for performance optimization. DNS records indicate hosting under T-Mobile Austria infrastructure with Microsoft Outlook for email protection. However, the SSL/TLS configuration is severely lacking, with no valid certificate and no enabled TLS protocols, which is a critical technical debt. Performance metrics are missing or zero, suggesting incomplete data or monitoring gaps. The site is mobile optimized with responsive design and accessibility features such as skip navigation links and ARIA labels. SEO is supported by meta tags, Open Graph, and JSON-LD structured data. Overall, the technical infrastructure is modern but requires urgent security upgrades.
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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