Skip to main content

Security report for telekom.sk

Slovak Telekom · Telecommunications · Slovakia

Medium risk. 5 critical or high findings in GDPR outside view and SSL/TLS.

Security score

70/100

Risk levelMedium

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

Slovak Telekom is a leading telecommunications provider in Slovakia offering a wide range of services including mobile phones, mobile plans, internet, and television services. The company targets both individual consumers and business customers, providing modern digital solutions such as the Magenta AI assistant and security services like Click Security. The website reflects a mature digital presence with professional design, clear navigation, and mobile optimization. Technically, the website is built using modern frameworks such as Next.js and leverages Amazon Cloudfront CDN for performance. It employs Google Tag Manager and Sentry for analytics and error tracking, indicating a robust infrastructure. Security is well-implemented with HTTPS, multiple security headers, and no visible vulnerabilities or exposed sensitive data. However, the website lacks explicit privacy and cookie policies and does not provide clear incident response or vulnerability disclosure information, which are important for compliance and user trust. Contact information is limited to a customer support phone number and social media links, with no email or physical address explicitly found in the provided content. Overall, Slovak Telekom's website demonstrates strong business credibility and technical maturity but should enhance privacy compliance and transparency to improve user trust and regulatory adherence.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 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

5 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

      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

    • High

      Third-party services without privacy policy

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

      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 20 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.

Billed monthly to your card. Cancel anytime. See sample alerts.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
60
Email security
85
DNS health
75
Network security
100
GDPR outside view
25
Average
70

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 holds a strong market position as a major telecommunications operator in Slovakia, serving a broad customer base including individuals, small businesses, and public sector entities. Its business model revolves around providing integrated communication services, including mobile telephony, internet access, and digital television. The company leverages partnerships and proprietary offerings such as Magenta 1 and Magenta Moments loyalty programs to enhance customer retention and value. Revenue streams are diversified across device sales, subscription plans, and value-added services like AI assistants and security features. The company maintains a consistent brand presence and invests in digital transformation, as evidenced by its modern website and app offerings. Its partnership ecosystem includes e-commerce platforms and media services, supporting a comprehensive customer experience.

Security posture

The website exhibits a strong security posture with enforced HTTPS, comprehensive security headers, and no detected exposure of sensitive information. The use of Sentry for error monitoring suggests proactive incident detection capabilities. However, the absence of publicly available security policies, incident response contacts, or vulnerability disclosure mechanisms indicates gaps in transparency and user assurance. Compliance with GDPR is implied but not explicitly documented on the site, and no cookie consent mechanism was detected, which may pose regulatory risks. The security score is high, but improvements in policy publication and user communication are recommended to align with best practices and legal requirements.

Recommendations

  1. Publish comprehensive privacy and cookie policies prominently linked on the website.
  2. Implement a clear cookie consent mechanism to comply with GDPR and enhance user trust.
  3. Provide explicit incident response and vulnerability disclosure information, including dedicated contact channels.
  4. Add data protection officer contact details to improve transparency and compliance.
  5. Regularly review and audit third-party scripts and tracking tools to mitigate potential security risks.

Contact details published on the site

Legal name
Slovak Telekom, a.s.
VAT number
SK2020273893
Registration number
2020273893
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Slovak Telekom
Description
Mobilné telefóny, Paušály, Magio Internet a Televízia od spoločnosti Telekom
Key services
Mobile phones and devices, Mobile plans (Paušály), Magio Internet, Magio TV, Magenta AI assistant, Click Security service, EKO coupon recycling program
Content quality
excellent
Branding
consistent

Technology

Stack
React (Next.js), Cloudfront CDN, Google Tag Manager, Sentry (error tracking)
Frameworks
Next.js
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of security headers
  • No exposed sensitive data in HTML
  • Use of Sentry for error monitoring

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Transparency
basic

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-structured.
  2. Content is comprehensive and relevant to telecommunications customers.
  3. No privacy or cookie policy links found in the provided HTML snapshot.
  4. Contact information is limited to phone and social media; no email or physical address explicitly found.
  5. Security posture is strong with HTTPS and security headers.
  6. No signs of WAF blocking or content restrictions.
  7. Use of modern web technologies and CDN for performance.
  8. Social media presence is strong with official accounts linked.
  9. No explicit vulnerability disclosure or incident response information found.
Technical notes

Notes

The website is built on a modern React-based framework (Next.js) and uses Amazon Cloudfront CDN for efficient content delivery. It integrates Google Tag Manager for analytics and Sentry for error tracking, indicating a mature technical infrastructure. The site is well-optimized for mobile devices and accessibility, with good SEO practices evident in meta tags and structured data. No technical debt or outdated libraries were detected in the provided content. Performance is likely fast due to CDN usage and optimized assets. Opportunities exist to enhance technical transparency by exposing security and privacy-related documentation and improving user consent mechanisms.
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. 76/100Low22 findingsView report
Reviews of this site

Share your experience with telekom.sk. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review telekom.sk.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.