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Security report for soneium.com

Sony Group Corporation · Technology · Japan

Medium risk. 5 critical or high findings in GDPR outside view and SSL/TLS.

Security score

73/100

Risk levelMedium

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

Soneium is a blockchain Layer-2 protocol developed by Sony Block Solutions Labs, a subsidiary of Sony Group Corporation, leveraging Optimism's Superchain technology. The platform targets developers and blockchain users by providing scalable infrastructure, bridging solutions, and a growing ecosystem of partners. The website reflects a modern, well-structured technical infrastructure built on Next.js and hosted on AWS, with good performance and mobile optimization. Security posture is strong with HTTPS and strict Content-Security-Policy headers, though DNSSEC is not enabled and privacy compliance documentation is missing. The domain registration is consistent with the business identity, enhancing trust. Overall, Soneium presents as a credible and professional blockchain project with room for improvement in privacy and incident response transparency.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 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

5 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.

    • 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 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

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics

      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 soneium.com

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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
77
Security headers
85
Email security
70
DNS health
70
Network security
100
GDPR outside view
35
Average
73

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 soneium.com, from OffSeq Breach.

No leaked records found

Breach holds no records for soneium.com right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

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

Soneium occupies a strategic position in the blockchain technology sector, backed by Sony Group Corporation, which provides significant market credibility. Its business model focuses on providing Layer-2 blockchain infrastructure and developer tools, targeting blockchain developers and enterprises interested in decentralized applications. The ecosystem includes multiple bridge partners, indicating a collaborative approach to interoperability. The project is relatively new (founded 2024) but benefits from strong corporate backing and a clear vision to mainstream web3 technologies. Growth potential is supported by active community engagement and partnerships.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and a strict Content-Security-Policy that limits resource loading to trusted sources. No critical vulnerabilities or exposed sensitive data were detected. However, the absence of DNSSEC and lack of published security policies or incident response contacts represent gaps. The site does not provide a vulnerability disclosure or security.txt file, which could improve transparency and trust. Overall, the security maturity is good but could be enhanced by formalizing policies and enabling additional DNS security features.

Recommendations

  1. Publish a comprehensive privacy policy and cookie policy to improve GDPR and privacy compliance.
  2. Enable DNSSEC on the domain to strengthen DNS security and prevent spoofing.
  3. Add a security.txt file or dedicated vulnerability disclosure page with contact information for incident reporting.
  4. Provide direct contact emails or phone numbers for business and security inquiries to improve transparency and trust.
  5. Enhance accessibility features to improve inclusivity and compliance with accessibility standards.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sony Group Corporation
Description
Soneium is an Ethereum Layer-2 protocol powered by Optimism's Superchain technology, developed by Sony Block Solutions Labs, a subsidiary of Sony Group Corporation. It focuses on building scalable blockchain infrastructure and ecosystem to enable decentralized applications, digital assets, and interoperability.
Key services
Ethereum Layer-2 blockchain protocol, Developer tools and resources, Bridging technology for cross-chain asset transfers, Ecosystem support and community engagement
Content quality
good
Branding
consistent

Technology

Stack
React, Next.js, JavaScript, Web3 technologies
Frameworks
Next.js
Platforms
Ethereum Layer-2 (Optimism Superchain)
Performance
fast
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • Strict Content-Security-Policy restricting sources
  • Use of HTTPS
  • No object-src allowed
  • Upgrade-insecure-requests directive

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
poor

Advertising

Marketing tools
Typeform
Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed with clear focus on blockchain technology and developer ecosystem.
  2. No privacy or cookie policies found, which is a compliance gap.
  3. No visible contact emails or phone numbers; contact is via forms and Discord community.
  4. Strong association with Sony Group Corporation adds trust and credibility.
  5. Security headers and HTTPS are properly implemented, but DNSSEC is not enabled.
  6. No evidence of adult or questionable content; content is safe for general audiences.
  7. Use of modern web technologies and hosting on AWS infrastructure.
  8. Presence of multiple third-party bridge partners indicates ecosystem maturity.
Technical notes

Notes

The website is built using modern web technologies including Next.js and React, hosted on Amazon AWS infrastructure, ensuring scalability and reliability. Performance is fast with asynchronous script loading and optimized CSS. The site uses strict Content-Security-Policy headers to mitigate XSS risks. No standard CMS was detected, indicating a custom or proprietary solution. SEO and mobile optimization are good, though accessibility could be improved. The use of third-party services like Google Tag Manager and Typeform supports marketing and user engagement but requires privacy policy coverage. Overall, the technical implementation is robust with minor areas for enhancement.
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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