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Security report for business24.cz

Česká spořitelna, a.s. · Finance · Czech Republic

Partial score · DNS & email only

70/100

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

Česká spořitelna operates the BUSINESS 24 Internetbanking platform, providing secure online banking services tailored for business clients in the Czech Republic. The platform supports advanced login mechanisms including client certificate authentication, enhancing security for corporate users. The website is professionally designed with clear navigation and consistent branding, targeting business customers who require reliable and secure financial services. The presence of official bank domains and contact information reinforces its legitimacy. Technically, the site leverages JavaServer Faces with Apache MyFaces Trinidad framework, integrating modern JavaScript libraries and third-party analytics tools such as Google Tag Manager and Split.io. While the site shows moderate performance and basic mobile optimization, it lacks visible advanced security headers in the provided HTML content. The cookie consent mechanism is GDPR compliant, reflecting attention to privacy regulations. Security posture is solid with HTTPS enforced and client certificate login, but could be improved by implementing additional security headers and publishing explicit security policies. The absence of WHOIS data limits domain trust assessment, though the website content and branding strongly indicate a legitimate financial institution. Overall, the site presents a trustworthy and professional banking portal with room for technical and security enhancements. Strategic recommendations include enhancing security headers, improving mobile and accessibility features, publishing clear security and incident response policies, and ensuring the client certificate extension installation process is secure and user-friendly.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 100 · High
Checks completed
6of 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, 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

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Keep watching business24.cz

This scan found 16 issues across 5 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
67
Email security
70
DNS health
75
Network security
100
GDPR outside view
40
Average
70

Not counted

  • Security headers: did not complete in this scan.
  • 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 business24.cz, from OffSeq Breach.

Total records
39
Employees
0
Customers
39
Third parties
0
Weak passwords
21%

2 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 business24.cz.

Select it in the checkout above.

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

Technical appendix

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

Business context

Business profile

Česká spořitelna is a leading financial institution in the Czech Republic, offering BUSINESS 24 as a dedicated internet banking platform for business clients. The service focuses on secure online payments, account management, and certificate-based authentication, catering to corporate customers requiring robust security. The business model revolves around providing digital banking services that enhance customer convenience and security. The company leverages partnerships with related domains such as servis24.cz and ibod.cz to extend service offerings. The platform's integration of modern analytics and tracking tools indicates a data-driven approach to customer experience and service optimization. Growth indicators include continuous updates to client certificate support and browser extension management. The ecosystem is tightly integrated with Česká spořitelna's corporate infrastructure, reinforcing market position and customer trust.

Security posture

The security posture of the BUSINESS 24 platform is generally strong, featuring HTTPS encryption and client certificate-based login, which provides a high level of authentication security. The site warns users about unsupported browsers and operating systems, promoting secure usage environments. However, the absence of visible security headers such as Content-Security-Policy, X-Frame-Options, and HSTS in the provided HTML content suggests potential areas for improvement. No explicit incident response or security policy pages were found, which could limit transparency and preparedness communication. The use of browser extensions for certificate management introduces additional security considerations that must be carefully managed. Overall, the platform demonstrates a mature security approach but would benefit from enhanced header implementation and public security documentation.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and HSTS to mitigate common web vulnerabilities.
  2. Publish clear and accessible security and incident response policies to improve transparency and user trust.
  3. Enhance mobile optimization and accessibility to improve user experience across devices.
  4. Ensure the client certificate browser extension installation process is secure, user-friendly, and well-documented.
  5. Regularly audit third-party scripts and tracking tools to minimize privacy risks and comply with GDPR.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Česká spořitelna, a.s.
Description
BUSINESS 24 Internetbanking allows to make payments and keep track your account wherever and whenever.
Key services
Internet banking, Payments, Account tracking, Certificate-based login
Content quality
good
Branding
consistent

Technology

Stack
Apache MyFaces Trinidad, JavaServer Faces (JSF), jQuery, Split.io SDK, Google Tag Manager, Google Analytics
Frameworks
Apache MyFaces Trinidad, JSF
Platforms
Web
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
65/100
Good practices seen
  • HTTPS enforced (implied by URL)
  • Use of client certificate login
  • Extension for client certificate management
  • Warnings for unsupported browsers and OS versions

Analytics and tracking

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

Advertising

Tracking pixels
Split.io
Marketing tools
Split.io
Transparency
basic

Site quality

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

Key observations

  1. Website is a professional internet banking portal for Česká spořitelna business customers.
  2. No WHOIS data available, limiting domain trust analysis.
  3. Uses client certificate login with browser extension support.
  4. Includes cookie consent banner compliant with GDPR.
  5. No explicit security headers detected in HTML content.
  6. Contains multiple external links to official bank domains and trusted services.
  7. No adult or questionable content detected.
  8. Mobile optimization is basic but functional.
  9. Uses modern JavaScript libraries and tracking tools.
Technical notes

Notes

The website is built on a JavaServer Faces framework using Apache MyFaces Trinidad, indicating a mature Java EE technology stack. It integrates modern JavaScript libraries including jQuery and Split.io SDK for feature flagging and analytics. Google Tag Manager and Google Analytics are used for tracking user behavior. The site uses server-side rendering with dynamic form handling and client certificate authentication mechanisms. Performance is moderate with room for improvement in mobile responsiveness and accessibility. No CMS is detected, suggesting a custom or enterprise-grade platform. Hosting provider details are not available from the provided data. The technical infrastructure supports secure banking operations but could benefit from modernization in frontend performance and security header implementation.
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. 70/100Medium25 findings · partial scanView report
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