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Security report for c3w.at

Chaos Computer Club Wien (C3W) · Technology · Austria

Low risk. 4 critical or high findings in GDPR outside view and SSL/TLS.

Security score

78/100

Risk levelLow

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

The Chaos Computer Club Wien (C3W) is a non-profit community organization based in Austria focused on promoting information freedom, critical engagement with electronic media, and the dissemination of free technologies and standards. The website serves as an informational hub for the community, providing contact details, event information, and advocacy resources. The organization targets technology enthusiasts, civil society members, and activists interested in digital rights and open technologies. Technically, the website is built using the Hugo static site generator with modern JavaScript libraries enhancing user experience. It is well-optimized for mobile devices and accessibility, with good SEO practices and a clean, professional design. Security posture is solid with HTTPS enforced and no visible vulnerabilities, though security headers and incident response policies could be improved. Privacy compliance is adequate with a privacy policy present, but no explicit cookie consent mechanism. Overall, the site is trustworthy, professional, and aligned with the organization's mission.

Scanned

NIS2 and GDPR posture

GDPR outside view
28/ 100 · High
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

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 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

  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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  • 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
72
Security headers
95
Email security
83
DNS health
90
Network security
100
GDPR outside view
28
Average
78

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 c3w.at, from OffSeq Breach.

Total records
12
Employees
0
Customers
12
Third parties
0
Weak passwords
42%

1 subdomain 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 c3w.at.

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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

C3W operates as a local chapter of the larger Chaos Computer Club network, positioning itself as a key player in the Austrian technology and civil society space. Its business model is non-profit and community-driven, focusing on advocacy, education, and technology promotion rather than commercial revenue. The organization leverages partnerships with local entities such as Metalab and maintains active communication channels via Mastodon and Matrix. The website reflects a mature digital presence with clear branding and consistent messaging. Growth indicators include active mailing lists and community events. The absence of commercial advertising or tracking tools aligns with the organization's privacy-respecting ethos.

Security posture

The website demonstrates a good security baseline with HTTPS enabled and no exposed sensitive data. However, the lack of security headers such as Content-Security-Policy and Strict-Transport-Security represents an area for improvement. No incident response or vulnerability disclosure information is provided, which could hinder timely reporting and mitigation of security issues. The absence of forms collecting sensitive data reduces attack surface but also limits user interaction. Overall, the security posture is adequate for a community informational site but could be enhanced with formal policies and technical controls.

Recommendations

  1. Implement standard security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security to harden the website against common attacks.
  2. Publish an incident response and vulnerability disclosure policy, including a security.txt file, to facilitate responsible reporting and handling of security issues.
  3. Add a cookie consent mechanism to comply fully with GDPR and enhance user privacy transparency.
  4. Consider adding a dedicated contact channel for security and abuse reports (e.g., security@c3w.at or abuse@c3w.at).
  5. Regularly review and update privacy policies and technical configurations to maintain compliance and security best practices.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Chaos Computer Club Wien (C3W)
Description
Der Chaos Computer Club Wien (C3W) ist eine Gemeinschaft von Menschen, unabhängig von Geschlecht, Alter, Religion oder Weltanschauung, sexueller Orientierung, ethnischer Zugehörigkeit sowie gesellschaftlicher Stellung, die sich grenzüberschreitend für Informationsfreiheit einsetzt, den kritischen Umgang mit elektronischen Medien sowie der Risiken und Nebenwirkungen der elektronischen Kommunikation und die Verbreitung von freien Technologien und Standards und das Wissen um diese Entwicklung fördert.
Key services
Community events, Information dissemination, Advocacy for information freedom, Promotion of free technologies and standards
Content quality
good
Branding
consistent

Technology

Stack
Hugo, FontAwesome, Perfect Scrollbar, Lunr.js, Auto-complete.js, Clipboard.js
Frameworks
Relearn theme
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • No forms collecting sensitive data on main page

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 and not blocked by any WAF or security challenge.
  2. Content is in German and targets a technology and civil society audience.
  3. No forms collecting sensitive personal data on the main page.
  4. No explicit security or incident response policies published.
  5. No advertising or tracking technologies detected.
  6. Use of modern static site generator Hugo and related JavaScript libraries.
  7. Clear contact information including email, social media, and physical address.
  8. No privacy or cookie consent banners detected, but privacy policy is present.
  9. No terms of service page found.
Technical notes

Notes

The website is built on the Hugo static site generator, leveraging a custom Relearn theme and several JavaScript libraries such as FontAwesome for icons, Perfect Scrollbar for UI enhancements, Lunr.js for search functionality, and Clipboard.js for clipboard interactions. The site is well-structured with semantic HTML and meta tags supporting SEO and social sharing via Open Graph and Twitter cards. Performance is moderate, typical for a static site with client-side enhancements. Mobile optimization and accessibility are well addressed. No CMS or dynamic backend detected, reducing complexity and attack surface. Hosting provider details are not explicit in the content. Overall, the technical implementation is modern, maintainable, and aligned with the organization's needs.
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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