Skip to main content

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, a.s. operates the BUSINESS 24 Internetbanking platform, targeting corporate clients in the Czech Republic. The service enables secure online banking, including payments and account management, leveraging client certificate authentication for enhanced security. The website reflects a professional banking portal with consistent branding and a focus on business users. Technically, the platform uses Apache MyFaces Trinidad framework and integrates modern JavaScript libraries and tracking tools such as Google Tag Manager and Split.io. While the site is functional and moderately optimized for mobile, there is room for improvement in accessibility and performance. Security measures include HTTPS and client certificate login, but explicit security headers are not evident in the HTML content. Privacy compliance is well addressed with cookie consent mechanisms and GDPR-aligned policies. Overall, the site demonstrates a strong business credibility and trustworthy presence consistent with a major financial institution.

Scanned

This is an earlier scan of business24.cz. View the latest report

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

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

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.

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. The full timeline opens with your unlock code.

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
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

The BUSINESS 24 service is positioned as a key digital banking channel for Česká spořitelna's corporate clients, offering essential financial services online. The business model focuses on secure, certificate-based authentication to meet stringent banking security requirements. The platform integrates with partner domains such as csas.cz and servis24.cz, indicating a cohesive ecosystem within the bank's digital offerings. The presence of tracking and analytics tools suggests ongoing efforts to optimize user experience and service delivery. The lack of publicly visible incident response or security policy pages may indicate internal handling of such processes. The company benefits from strong brand recognition and a large enterprise scale, serving a significant market segment in the Czech banking industry.

Security posture

The website employs HTTPS and client certificate authentication, which are strong security controls for online banking. However, the absence of visible security headers like Content Security Policy (CSP), X-Frame-Options, or HSTS in the HTML content is a potential gap. The reliance on browser extensions for client certificate functionality introduces dependency risks and user experience challenges. Cookie consent and privacy banners demonstrate compliance with data protection regulations. No critical vulnerabilities or exposed sensitive data were detected in the analyzed content. The security score is moderate, reflecting good baseline controls but opportunities for enhancement in header policies and explicit security documentation.

Recommendations

  1. Implement and enforce comprehensive HTTP security headers (CSP, HSTS, X-Frame-Options).
  2. Publish clear security and incident response policies accessible to users.
  3. Improve mobile optimization and accessibility to enhance user experience.
  4. Regularly audit and update third-party scripts and browser extensions for vulnerabilities.
  5. Enhance transparency by providing contact emails for security and support inquiries.
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 management
Content quality
good
Branding
consistent

Technology

Stack
Apache MyFaces Trinidad, JavaScript, jQuery, Split.io SDK, Google Tag Manager, Google Analytics
Frameworks
Apache MyFaces Trinidad
Platforms
Web
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
70/100
Good practices seen
  • HTTPS enforced (implied by URL)
  • Client certificate login option
  • Extension required for client certificate
  • Cookie consent banner

Analytics and tracking

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

Advertising

Tracking pixels
TrustCommander
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 banking internet portal for corporate clients.
  2. Strong branding and consistent design aligned with Česká spořitelna.
  3. Uses client certificate login with browser extension dependency.
  4. Cookie consent and privacy mechanisms are implemented.
  5. No visible security headers in HTML but HTTPS implied.
  6. No contact emails explicitly found; phone contact provided.
  7. No terms of service page detected in the analyzed content.
  8. Multiple external trusted domains linked, including official bank domains.
  9. Uses modern JavaScript libraries and tracking tools.
  10. No adult or questionable content detected.
Technical notes

Notes

The website is built on the Apache MyFaces Trinidad Java framework, utilizing JavaScript libraries including jQuery and Split.io SDK for feature flagging and analytics. Google Tag Manager and Google Analytics are integrated for user tracking and performance monitoring. The site uses server-side rendering with dynamic forms and client certificate login workflows. Performance is moderate with asynchronous script loading but could benefit from further optimization. Mobile responsiveness is basic, with some legacy browser support warnings. Accessibility features are minimal but present. No CMS is explicitly detected. Hosting provider details are not available from the content. Overall, the technical infrastructure supports a secure banking application but could be modernized for improved performance and user experience.
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
Reviews of this site

Share your experience with business24.cz. 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 business24.cz.

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.