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Security report for telekom.sk

Slovak Telekom · Telecommunications · Slovakia

Low risk. 4 critical or high findings in GDPR outside view and SSL/TLS.

Security score

76/100

Risk levelLow

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

Slovak Telekom is the leading telecommunications provider in Slovakia, offering a wide range of services including mobile telephony, mobile plans, fixed internet, Magio TV, and device sales. The company targets both consumer and business segments, including small firms and public administration. The website reflects a mature digital presence with a professional design, clear navigation, and comprehensive content. Technically, the site uses modern technologies such as Liferay CMS, jQuery, and Google Analytics, with good mobile optimization and performance. Security posture is strong with HTTPS, security headers, and a bug bounty program, although explicit incident response contacts and security.txt are not found. Privacy and cookie policies are present and GDPR compliant. Overall, the site is trustworthy, well-branded, and aligned with the company's business operations and WHOIS data.

Scanned

This is an earlier scan of telekom.sk. View the latest report

NIS2 and GDPR posture

GDPR outside view
40/ 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. 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

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, LinkedIn, YouTube, Google APIs

      What to do: Document all third-party data sharing in your privacy policy

  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 telekom.sk

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.

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Recommended

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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
85
Email security
85
DNS health
75
Network security
100
GDPR outside view
40
Average
76

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.

Dark web exposure

Add-on

Leaked records that mention telekom.sk, from OffSeq Breach.

Total records
17,752
Employees
84
Customers
17,413
Third parties
255
Weak passwords
14%

Latest record dated 2026-06-10 · 58 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for telekom.sk.

Select it in the checkout above.

Masked preview

  • –www.telekom.sk2026-06-10
  • –www.telekom.sk2026-06-09
  • –pop3posta.telekom.sk2026-06-04
  • –mail.telekom.sk2026-05-20
  • –mail.telekom.sk2026-05-11

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Open in Breach(opens in a new tab)Monitor on Breach(opens in a new tab)

Technical appendix

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

Business context

Business profile

Slovak Telekom operates as an enterprise-level telecommunications provider under the parent company Deutsche Telekom AG. It holds a dominant market position in Slovakia with a diversified portfolio of services including mobile, fixed, and TV offerings. The business model includes direct consumer sales, business solutions, and bundled packages. The company leverages partnerships for e-commerce and streaming services. The website's content and structure indicate a focus on customer experience and digital engagement, supported by analytics and marketing tools. The presence of a bug bounty program suggests a proactive security culture. The company maintains a consistent brand and strong social media presence, reinforcing market trust and customer loyalty.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, comprehensive security headers, and no visible exposure of sensitive data. The use of a bug bounty program indicates active vulnerability management. However, the absence of explicit incident response contact information and a security.txt file suggests room for improvement in transparency and readiness. The site uses secure forms and disables autocomplete on sensitive inputs. No vulnerable libraries or security flaws were detected in the provided content. Overall, the security measures align well with industry best practices for a telecommunications enterprise.

Recommendations

  1. Publish clear incident response and security contact information on the website.
  2. Implement and publish a security.txt file to facilitate responsible vulnerability disclosure.
  3. Enhance accessibility features to improve compliance and user experience for all users.
  4. Regularly audit and update third-party libraries and scripts to mitigate potential vulnerabilities.
  5. Maintain transparency in privacy and data retention policies to strengthen user trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Slovak Telekom
Description
Slovak Telekom offers mobile phones, mobile plans (paušály), Magio Internet and TV services, roaming, fixed lines, and related telecommunications products and services in Slovakia.
Key services
Mobile telephony, Mobile plans (paušály), Magio Internet, Magio TV, Fixed line telephony, Roaming services, Device sales and leasing
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery 1.11.1, Google Tag Manager, Google Analytics (gtag.js), Luigisbox autocomplete and search, Liferay Portal CMS, Vue.js (templates detected), Various CSS frameworks and custom styles
Frameworks
Liferay Portal
Platforms
Web desktop, Mobile responsive design
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Security headers present
  • No exposed sensitive data in HTML
  • Secure forms with autocomplete off
  • Bug bounty program indicating proactive security

Analytics and tracking

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

Advertising

Marketing tools
Luigisbox search and autocomplete
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and well maintained.
  2. Comprehensive product and service offerings for both consumer and business segments.
  3. Strong brand presence with consistent branding and social media integration.
  4. Good security posture with HTTPS and security headers.
  5. Privacy and cookie policies are present and GDPR compliant.
  6. No signs of suspicious or malicious content.
  7. Use of modern web technologies and CMS (Liferay).
  8. Active marketing and analytics tools deployed responsibly.
Technical notes

Notes

The website is built on the Liferay Portal CMS platform, utilizing jQuery and Vue.js for dynamic content rendering. It integrates Google Tag Manager and Google Analytics for tracking and marketing analytics. The site is mobile responsive with good SEO meta tags and structured navigation. Performance is moderate, with room for optimization in loading speed. The technical infrastructure appears robust and scalable, suitable for an enterprise telecommunications provider. The use of modern JavaScript libraries and CSS frameworks supports a rich user experience. However, some legacy libraries like jQuery 1.11.1 could be updated to newer versions to reduce technical debt and improve security.
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. 70/100Medium24 findingsView report
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