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Security report for lightmatter.co

Lightmatter® · Technology · United States

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 3 other checks.

Security score

60/100

Risk levelMedium

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

Lightmatter® is a technology company specializing in photonic supercomputing and AI infrastructure, leveraging photonic chips and innovative interconnect technology to advance AI capabilities. Founded in 2012 and based in Mountain View, California, the company positions itself as a leader in the emerging photonic computing market, targeting AI researchers and technology enterprises. Their product portfolio includes Passage™ technology and photonic superchips designed to overcome traditional silicon limitations. The website is built on WordPress, hosted likely on AWS infrastructure, and integrates modern web technologies including Google Analytics and Tag Manager for tracking. The site is professionally designed with excellent content quality, clear navigation, and good mobile optimization. SEO practices are well implemented, and accessibility is basic but present. Security posture is solid with HTTPS enforced and domain registration protected by privacy services. However, the site lacks explicit security policies, incident response information, and vulnerability disclosure mechanisms. Cookie consent is implemented, indicating GDPR awareness. No critical vulnerabilities or exposed sensitive data were detected. Overall, the website reflects a mature, credible technology company with a strong market position in photonic AI hardware. Strategic improvements in security transparency and incident response readiness would enhance trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
80/ 100 · Low
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

6 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 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 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 Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

  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

  4. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • High

      Unregistered MX Record

      MX record points to unregistered domain: ms64214675.msv1.invalid.lightmatter.co

      What to do: Remove or fix MX record pointing to unregistered domain

      • RFC 5321 §5.1
      • NIS2 21(2)(i)
      • IR 2024/2690 12.4: Implementing Regulation (EU) 2024/2690, Annex point 12.4: Asset inventory
      • NIST CM-8: NIST SP 800-53 Rev. 5 CM-8: System Component Inventory

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

Keep watching lightmatter.co

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.

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

Email alerts on material changes and an exportable JSON history of every change.

Billed monthly to your card. Cancel anytime. The full timeline opens with your unlock code.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
62
Security headers
40
Email security
87
DNS health
70
Network security
20
GDPR outside view
80
Average
60

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

Lightmatter operates in the high-tech photonic computing sector, focusing on AI infrastructure hardware innovation. Their competitive advantage lies in proprietary photonic chip technology and packaging solutions enabling high bandwidth scale-up for AI workloads. The business model centers on product sales and industry collaboration to drive photonics standardization. The company demonstrates growth through recent funding announcements and board appointments. Partnerships with industry consortia like GSA and Optica indicate a strong ecosystem presence. Target customers include AI developers, semiconductor manufacturers, and research institutions. The website content and social media presence support a professional and growth-oriented business strategy.

Security posture

The website exhibits a moderate to strong security posture with HTTPS enabled and domain registration protections in place. The presence of cookie consent mechanisms aligns with privacy regulations. However, the absence of a published security policy, incident response contacts, and vulnerability disclosure reduces transparency and preparedness perception. No security headers were detected in the provided data, suggesting room for improvement. No known vulnerabilities or exposed sensitive information were found. Overall, the security maturity is adequate but could benefit from enhanced documentation and proactive disclosure.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Implement and publicize a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  3. Add incident response contact information such as security@ or abuse@ email addresses.
  4. Enhance HTTP security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  5. Regularly audit third-party scripts and plugins to mitigate potential vulnerabilities.

Contact details published on the site

Addresses
Legal name
Lightmatter®
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Lightmatter®
Description
Lightmatter is a leader in photonic supercomputing, developing cutting-edge AI infrastructure powered by photonic technology.
Key services
Photonic chips, Passage™ interconnect and packaging technology, AI infrastructure solutions
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, jQuery, Google Analytics, Google Tag Manager, SproutVideo player
Frameworks
The SEO Framework (WordPress plugin)
Platforms
AWS (inferred from AWS DNS servers)
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Client transfer, delete, renew, update prohibited domain status
  • Cookie consent banner implemented

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed and well-structured
  2. Clear focus on photonic AI computing technology
  3. Multiple product and research offerings detailed
  4. Active social media presence on LinkedIn, Twitter, Facebook, Medium
  5. Cookie consent banner present indicating privacy awareness
  6. No visible security policy or incident response information
  7. No exposed sensitive data or obvious vulnerabilities detected
  8. WHOIS privacy protection used but justified
  9. No WAF or blocking mechanisms detected
Technical notes

Notes

The website is built on WordPress CMS with a modern theme and uses jQuery and other JavaScript libraries for interactivity. Google Analytics and Tag Manager are integrated for user tracking and marketing insights. Hosting appears to be on AWS, inferred from DNS nameservers. The site loads with moderate performance and is mobile optimized. SEO is well addressed with meta tags, Open Graph, and JSON-LD structured data. Accessibility features are basic but present. The technical stack is current and supports a professional online presence, though performance optimizations and security header enhancements could be considered.
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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