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Security report for gewista.at

Gewista · Media · Austria

High risk. 9 critical or high findings in GDPR outside view, SSL/TLS and 2 other checks.

Security score

40/100

Risk levelHigh

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

Gewista is a leading Austrian media company specializing in Out-of-Home advertising, operating under the majority ownership of global market leader JCDecaux. The company offers a broad portfolio of advertising media including traditional billboards, street furniture, and transport media, with a strong focus on digital innovation and public value initiatives. The website reflects a mature digital presence built on Drupal 10, leveraging modern JavaScript libraries and CDN hosting. However, the absence of a valid SSL certificate and HTTPS support significantly undermines the site's security posture. Additionally, a subdomain takeover vulnerability was identified, posing a risk to brand reputation and security. Privacy and cookie policies are comprehensive and GDPR compliant, supporting good privacy practices. Overall, the site demonstrates good business credibility and content quality but requires urgent security improvements to meet modern standards.

Scanned

NIS2 and GDPR posture

GDPR outside view
0/ 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

9 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

    • Critical

      No HTTPS encryption

      GDPR requires appropriate security measures for personal data

      What to do: Implement SSL/TLS certificate for HTTPS

  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.

    • Critical

      No HTTPS Encryption

      Website does not use HTTPS encryption, making all data transmission vulnerable to interception

      What to do: Implement SSL/TLS certificate and redirect all HTTP traffic to HTTPS

  3. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

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

Keep watching gewista.at

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

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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
0
Security headers
25
Email security
50
DNS health
65
Network security
100
GDPR outside view
0
Average
40

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 gewista.at, from OffSeq Breach.

Total records
20
Employees
4
Customers
8
Third parties
8
Weak passwords
45%

Latest record dated 2026-05-28 · 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 gewista.at.

Select it in the checkout above.

Masked preview

  • –adfs.gewista.at2026-05-28
  • –adfs.gewista.at2025-09-21
  • –adfs.gewista.at2025-07-25
  • –adfs.gewista.at2025-04-16

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

Gewista holds a dominant market position in Austria's Out-of-Home advertising sector, supported by a large workforce and a diversified product offering. Its integration with JCDecaux provides strategic advantages and access to global resources. The company targets advertisers and marketing agencies, emphasizing digital transformation through platforms like VIOOH. Subsidiaries such as Kulturformat, Megaboard, and Infoscreen expand its market reach. The website content is professionally presented, with clear navigation and multilingual support, enhancing user engagement. Social media integration and detailed legal disclosures further reinforce trust. The business model focuses on media sales and innovative advertising solutions, positioning Gewista as a key player in the Austrian media landscape.

Security posture

The current security posture of the website is weak due to the lack of a valid SSL certificate and disabled TLS protocols, resulting in no HTTPS encryption. This exposes users to potential data interception and undermines trust. The presence of security headers like X-Content-Type-Options is positive but insufficient. The identified subdomain takeover vulnerability on dev.gewista.at is a critical issue that could allow attackers to hijack subdomain traffic. Absence of HSTS, OCSP stapling, and session resumption further degrade security. No explicit incident response or security policy pages were found, indicating potential gaps in security governance. Immediate remediation of SSL/TLS issues and subdomain security is recommended to enhance protection and compliance.

Recommendations

  1. Install and maintain a valid SSL/TLS certificate to enable HTTPS across all domains and subdomains.
  2. Enable modern TLS protocols (TLS 1.2 and TLS 1.3) and disable deprecated versions.
  3. Implement HTTP Strict Transport Security (HSTS) with includeSubDomains and preload directives.
  4. Address the subdomain takeover vulnerability on dev.gewista.at by removing or properly configuring the DNS entry.
  5. Add OCSP stapling and enable session resumption to improve SSL performance and security.
  6. Publish a clear security policy and incident response plan accessible on the website.
  7. Enhance privacy consent mechanisms to include explicit cookie consent banners.
  8. Regularly audit third-party scripts and libraries for vulnerabilities and update accordingly.
Technical notes

Notes

The website is built on Drupal 10 CMS, utilizing jQuery and AddToAny for social sharing. Hosting is via Amazon CloudFront CDN, ensuring global content delivery. The site includes Google Tag Manager for analytics and tracking. Performance metrics are missing, but chunked transfer encoding and lack of TLS suggest potential latency and security issues. Mobile optimization is good with responsive design elements. SEO is supported by canonical links and hreflang tags. Accessibility features are basic but present. The technical stack is modern but requires security hardening and performance optimization to meet enterprise standards.
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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