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Security report for kdd.si

KDD – Centralna klirinško depotna družba d.d. · Finance · Slovenia

Medium risk. 8 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

52/100

Risk levelMedium

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

KDD – Centralna klirinško depotna družba d.d. is the central securities depository in Slovenia, established in 1995. It provides critical financial market infrastructure services including securities registration, clearing and settlement, and issuance of international identification numbers such as LEI. The company holds memberships in key industry associations like ANNA and ECSDA, reinforcing its market position and trustworthiness. The website targets financial institutions, issuers, and investors primarily within Slovenia, offering a range of electronic services and corporate action management tools. Technically, the website employs modern web technologies including jQuery, Slick Carousel, and the Foundation framework, ensuring a responsive and user-friendly experience. Hosting is managed by a Slovenian registrar consistent with the business location. The site is well-structured with good SEO and accessibility basics, though some improvements could be made in accessibility and performance optimization. From a security perspective, the site uses HTTPS with a strong SSL configuration and avoids exposing sensitive data. However, it lacks explicit security headers and does not publicly provide incident response or vulnerability disclosure information. Privacy compliance is generally good with a comprehensive privacy policy, but the absence of a cookie consent mechanism is a minor gap. Overall, the website is professional, trustworthy, and well-aligned with the business's role in the Slovenian financial market. Strategic improvements in security headers, cookie consent, and incident response transparency would enhance its security posture and compliance standing.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 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

8 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 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

    • High

      Third-party services without privacy policy

      Detected services: Cloudflare

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

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

Keep watching kdd.si

This scan found 23 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
52
Security headers
75
Email security
85
DNS health
70
Network security
20
GDPR outside view
10
Average
52

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 kdd.si, from OffSeq Breach.

No leaked records found

Breach holds no records for kdd.si right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

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

KDD operates as an essential financial market infrastructure entity in Slovenia, serving as the central securities depository. Its competitive advantage lies in its exclusive position in the Slovenian market and its integration with global systems such as LEI issuance. The business model revolves around providing clearing, settlement, and registry services to financial market participants, generating revenue through service fees and data provision. The company targets institutional clients including issuers, members, and investors. Growth indicators include active participation in international associations and continuous service offerings expansion. The partnership ecosystem includes global numbering agencies and European securities associations, enhancing credibility and operational standards.

Security posture

The security maturity of the website is moderate to high. HTTPS is enforced with a good SSL configuration, and no sensitive data is exposed in the HTML. The use of ASP.NET VIEWSTATE fields indicates server-side state management, which is standard but requires secure handling. The absence of security headers such as Content-Security-Policy and X-Frame-Options is a notable gap that could expose the site to clickjacking or content injection risks. No visible vulnerable libraries were detected, and no incident response or vulnerability disclosure policies are published, which limits transparency and readiness perception. GDPR compliance is supported by a comprehensive privacy policy, but cookie consent mechanisms are missing. Overall, the site demonstrates good baseline security but would benefit from enhanced header policies and public security governance documentation.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Content-Type-Options, X-Frame-Options, and Strict-Transport-Security.
  2. Add a cookie consent banner/mechanism to comply fully with GDPR cookie requirements.
  3. Publish a security.txt file and incident response contact information to improve vulnerability disclosure and incident handling transparency.
  4. Conduct regular security audits to ensure no vulnerable libraries or exposed sensitive data exist.
  5. Enhance accessibility features and optimize performance for improved user experience and SEO.

Contact details published on the site

Addresses
Legal name
KDD – Centralna klirinško depotna družba d.d.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
KDD – Centralna klirinško depotna družba d.d.
Description
KDD is the central securities depository in Slovenia, providing services such as securities registration, clearing and settlement, and issuance of international identification numbers (LEI). It serves financial market participants including issuers, members, and holders of securities.
Key services
Securities registration and custody, Clearing and settlement of securities transactions, Issuance and maintenance of LEI codes, Provision of electronic services and data, Corporate actions management
Content quality
good
Branding
consistent

Technology

Stack
jQuery 3.3.1, Slick Carousel 1.9.0, Foundation 6.4.3, Typekit fonts
Frameworks
Foundation
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of hidden form fields with VIEWSTATE and VIEWSTATEGENERATOR (ASP.NET)
  • No visible vulnerable libraries detected

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with rich content in Slovenian language.
  2. No signs of blocking or WAF challenges.
  3. Strong business focus on securities depository and financial market infrastructure.
  4. Good use of modern web technologies and responsive design.
  5. Lacks explicit cookie consent mechanism.
  6. No visible security.txt or incident response contact information.
  7. Clear contact details and legal notices present.
  8. No advertising or tracking scripts detected.
Technical notes

Notes

The website is built on a custom or proprietary CMS platform using ASP.NET technology, indicated by the presence of VIEWSTATE fields. It leverages modern JavaScript libraries such as jQuery and Slick Carousel for UI components and Foundation framework for responsive design. Fonts are loaded via Adobe Typekit. Hosting is provided by a Slovenian registrar NEOSERV.si, consistent with the business location. The site is mobile-optimized with good navigation clarity and SEO meta tags including Open Graph for social sharing. Performance is moderate, with potential improvements in caching and resource optimization. No major technical debt or deprecated technologies were detected, but security header implementation is lacking.
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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