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Security report for tg4.com.br

TG4 Soluções de Tecnologia Ltda · Technology · Brazil

Medium risk. 7 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

50/100

Risk levelMedium

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

TG4 Soluções de Tecnologia Ltda is a Brazilian technology company specializing in custom software development, strategic consulting, design and UX, and discovery and research services. The company serves a diverse range of industries including healthcare, fintech, education, energy, and telecommunications. With over 10 years of experience and a portfolio of more than 100 projects across 12 countries, TG4 positions itself as a reliable mid-sized technology solutions provider. The website is bilingual, targeting both Portuguese and English-speaking clients, indicating an international business scope. Technically, the website is built on a modern React and Next.js stack, providing a good user experience and mobile optimization. However, there is room for improvement in SEO and accessibility features. Security posture is basic with no visible security headers or published security policies, and privacy compliance is lacking due to absence of privacy and cookie policies. Contact information is clearly provided, enhancing business credibility. Overall, the website is professional and functional but would benefit from enhanced security and privacy transparency.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 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

7 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

      No HTTPS encryption

      GDPR requires appropriate security measures for personal data

      What to do: Implement SSL/TLS certificate for HTTPS

    • 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

  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 X-Frame-Options header

      Prevents clickjacking attacks

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

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

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Keep watching tg4.com.br

This scan found 21 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
0
Security headers
30
Email security
85
DNS health
60
Network security
100
GDPR outside view
25
Average
50

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

Technical appendix

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

Business context

Business profile

TG4 operates in the B2B technology services market, focusing on delivering tailored software and consulting solutions. Their competitive advantage lies in their multidisciplinary expertise combining technology and strategic consulting, serving multiple sectors with specialized knowledge. The company leverages partnerships with notable clients such as BTG and Allied Digital, which strengthens its market position. Revenue streams likely come from project-based software development and consulting contracts. The bilingual website and international client base suggest growth ambitions beyond Brazil. TG4's portfolio and client logos serve as trust signals, although the lack of published policies may limit trust for privacy-conscious clients. The company appears to maintain a moderate size with a professional approach to business communications.

Security posture

The website currently exhibits a basic security posture. There is no evidence of HTTPS enforcement or SSL configuration details in the provided data, and no security headers such as Content-Security-Policy or X-Frame-Options are detected. No vulnerability disclosure or incident response information is published, which may hinder rapid response to security incidents. The absence of privacy and cookie policies indicates potential compliance gaps with GDPR and other data protection regulations. No analytics or tracking scripts were found, which reduces privacy risks but also limits user behavior insights. Overall, the security maturity is low to moderate, with significant opportunities for improvement in transparency, technical controls, and compliance documentation.

Recommendations

  1. Implement HTTPS with strong SSL/TLS configuration and ensure all pages are served securely.
  2. Add essential security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Publish comprehensive privacy and cookie policies to improve GDPR and privacy compliance.
  4. Create and publish a vulnerability disclosure policy or security.txt file to facilitate responsible reporting.
  5. Establish incident response contact channels such as security@ or abuse@ email addresses.
  6. Enhance SEO and accessibility features to improve website reach and usability.
  7. Consider integrating analytics with privacy-respecting configurations to better understand user engagement.

Contact details published on the site

Addresses
Legal name
TG4 Soluções de Tecnologia Ltda
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
TG4 Soluções de Tecnologia Ltda
Description
TG4 is a technology solutions company providing strategic consulting, software development, design and UX, and discovery and research services. They serve diverse sectors including healthcare, e-learning, fintech, oil & gas, insurance, pension, and telecommunications. The company emphasizes custom solutions, creativity, and technical expertise to deliver high-quality products and services.
Key services
Strategic Consulting, Software Development, Design and UX, Discovery and Research
Content quality
good
Branding
consistent

Technology

Stack
Next.js, React.js, JavaScript, CSS, HTML
Frameworks
Next.js, React
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
30/100

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. No privacy or cookie policies found on the website.
  2. No terms of service or security policies published.
  3. Contact information is clearly provided in the footer.
  4. No forms detected on the homepage; contact likely via email or contact page.
  5. No social media links found in the provided HTML content.
  6. Website uses modern React/Next.js technology stack.
  7. No explicit security headers or SSL details available from provided data.
  8. No analytics or tracking scripts detected.
  9. Client logos and project descriptions enhance trust.
  10. Content is bilingual (Portuguese and English) indicating international reach.
Technical notes

Notes

The website is built using Next.js and React.js frameworks, leveraging modern JavaScript and CSS technologies. The site is bilingual, supporting Portuguese and English, indicating internationalization capabilities. The use of preloading and deferred scripts suggests attention to performance optimization, though no explicit performance metrics are available. The site is mobile optimized with responsive design elements. No CMS or third-party hosting provider information is detected. The technical implementation is solid but could benefit from enhanced SEO metadata and accessibility improvements. No analytics or tracking technologies were identified, which may limit marketing insights but improves privacy. Overall, the technical infrastructure supports a professional web presence with room for modernization in security and compliance aspects.
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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