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Security report for bigbrain.holdings

Big Brain Holdings · Technology · N/a

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

75/100

Risk levelMedium

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

Big Brain Holdings is a specialized investment firm focused on early-stage blockchain and crypto-native projects. The company positions itself as a committed partner to visionary founders in the blockchain ecosystem, emphasizing its deep crypto-native expertise. The website showcases a comprehensive portfolio of blockchain infrastructure, consumer, DeFi, gaming, and web3 projects, indicating a broad and active investment scope. Technically, the website uses modern JavaScript libraries such as jQuery and Google reCAPTCHA for form security, and Google Tag Manager for analytics, reflecting a moderate level of digital maturity. The site is fully accessible with HTTPS enabled, but lacks visible security headers and formal privacy or cookie policies, which are areas for improvement. Overall, the security posture is adequate but could be enhanced with better compliance documentation and security best practices. The domain WHOIS data is privacy protected or unavailable, which is common in the blockchain sector and does not detract significantly from legitimacy given the professional site content and extensive portfolio. Strategic recommendations include implementing privacy and cookie policies, adding security headers, and providing direct contact information to improve trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
50/ 100 · Medium
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

5 findings rated critical or high. Fix these first.

  1. 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 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';…

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • 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

      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

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Twitter, Cloudflare

      What to do: Document all third-party data sharing in your privacy policy

  3. 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 bigbrain.holdings

This scan found 19 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
72
Security headers
65
Email security
85
DNS health
75
Network security
100
GDPR outside view
50
Average
75

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

Big Brain Holdings operates in the competitive blockchain investment sector, targeting early-stage projects across multiple blockchain verticals including infrastructure, DeFi, gaming, and web3 tools. Their portfolio includes well-known projects such as Solana, Avalanche, and The Graph, which enhances their market credibility. The business model centers on venture capital investments with a focus on crypto-native founders, positioning them as a niche but important player in the blockchain ecosystem. The absence of direct contact emails or phone numbers suggests a preference for controlled communication via contact forms, which may limit immediate engagement but helps manage inbound inquiries. The company leverages social media presence on Twitter to maintain visibility. Growth indicators include active publishing of thought leadership content and a broad portfolio. No parent or subsidiary companies are identified, indicating an independent operation. The partnership ecosystem is extensive, linking to many blockchain projects, which may provide competitive advantages through network effects.

Security posture

The website demonstrates a baseline security posture with HTTPS enforced and use of Google reCAPTCHA to protect contact forms from spam and abuse. However, the absence of key security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options reduces the overall security hardening. No direct evidence of vulnerabilities or exposed sensitive data was found. The lack of published security policies or incident response contacts limits transparency and preparedness perception. Compliance with GDPR or other privacy regulations is not clearly indicated due to missing privacy and cookie policies. The use of third-party scripts like Google Tag Manager and jQuery is standard but requires ongoing monitoring for vulnerabilities. Overall, the security maturity is moderate but could be improved by adopting security best practices and compliance documentation.

Recommendations

  1. Implement and publish a comprehensive privacy policy and cookie policy to improve GDPR compliance and user trust.
  2. Add essential security headers (Content-Security-Policy, X-Frame-Options, X-Content-Type-Options) to enhance protection against common web attacks.
  3. Provide direct contact information such as a company email address and phone number to improve business credibility and user engagement.
  4. Establish and publish a security incident response policy and contact channel to demonstrate preparedness and transparency.
  5. Regularly audit and update third-party libraries and scripts to mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Big Brain Holdings
Description
Big Brain Holdings is a fully committed, crypto-native investment firm specializing in early-stage investments in blockchain technology and ecosystems. They partner with visionary founders shaping the future of blockchain.
Key services
Early-stage blockchain investments, Partnership with blockchain founders
Content quality
good
Branding
consistent

Technology

Stack
jQuery 3.6.0, jQuery Validate 1.19.3, Google reCAPTCHA v2, Google Tag Manager (gtag.js)
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Google reCAPTCHA on contact form to prevent spam

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
poor

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. WHOIS data is unavailable or privacy protected, limiting domain registration insights.
  3. No explicit privacy, cookie, or terms of service policies found on the site.
  4. Contact is available only via a contact form; no direct emails or phone numbers provided.
  5. Strong portfolio presence with many reputable blockchain projects linked.
  6. Use of modern JavaScript libraries and Google reCAPTCHA for spam protection.
  7. No security headers detected in provided data; SSL is enabled.
  8. No signs of adult or questionable content; content is professional and business-focused.
Technical notes

Notes

The website is built using standard web technologies including HTML5, CSS, and JavaScript with jQuery and jQuery Validate libraries for client-side validation. Google reCAPTCHA v2 is integrated for spam prevention on the contact form. Google Tag Manager is used for analytics and tracking. The site is mobile responsive with a clear navigation structure and a well-organized portfolio section. Performance is moderate, with no explicit indicators of slow loading but no advanced optimization techniques detected. No CMS or hosting provider information is evident from the source. Accessibility features are basic, with room for improvement in semantic markup and ARIA attributes. SEO optimization is basic, with meta tags present but no structured data such as JSON-LD detected. Overall, the technical implementation is solid but could benefit from modernization and enhanced accessibility and SEO practices.
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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