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Security report for knowles.com

Knowles Electronics, LLC · Technology · United States

Medium risk. 4 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

55/100

Risk levelMedium

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

Knowles Electronics, LLC is a well-established market leader specializing in high-performance electronic components including advanced micro-acoustic microphones, balanced armature speakers, capacitors, and RF filtering products. The company primarily serves demanding sectors such as Industrial, MedTech, Aerospace/Defense, Electrification, and Consumer Electronics. Their business model focuses on manufacturing and supplying specialized components to these industries, maintaining a strong market position supported by a professional and content-rich website. The company recently divested its Consumer MEMS Microphones Division to Syntiant Corporation, indicating strategic business realignment. Technically, the website is built on a mature ASP.NET framework with Sitefinity CMS, hosted on AWS infrastructure. It integrates modern marketing and analytics tools such as Google Analytics, Google Tag Manager, and Hotjar, demonstrating digital maturity and a focus on user experience and data-driven insights. The site is mobile-optimized with good SEO practices and clear navigation, although accessibility features are basic. From a security perspective, the website exhibits critical weaknesses due to the absence of a valid SSL certificate and lack of HTTPS support, severely impacting the security posture. While some security headers are present and cookie consent mechanisms are implemented, the lack of TLS protocols and strong cipher suites exposes the site to significant risks. No explicit security or incident response policies are published, and no vulnerability disclosure or security.txt files are found. Overall, the website is professional and credible from a business standpoint but requires urgent security improvements to protect user data and maintain trust. Strategic recommendations include immediate SSL/TLS deployment, enhanced security header configuration, and publication of security policies to align with industry best practices.

Scanned

NIS2 and GDPR posture

GDPR outside view
33/ 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

      No HTTPS encryption

      GDPR requires appropriate security measures for personal data

      What to do: Implement SSL/TLS certificate for HTTPS

    • 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.

    • 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 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';…

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

Keep watching knowles.com

This scan found 18 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.

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Full report

€39.90one-time

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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
0
Security headers
55
Email security
70
DNS health
85
Network security
85
GDPR outside view
33
Average
55

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

Knowles operates in specialized technology sectors with a focus on high-performance components for critical applications. Their competitive advantage lies in their advanced product portfolio and market leadership in niche segments such as MedTech and Aerospace/Defense. The divestiture of their Consumer MEMS Microphones Division to Syntiant suggests a strategic focus on industrial and specialty markets. The company targets B2B customers requiring precision components, leveraging a manufacturing and supply chain business model. Their investor relations presence and press releases indicate transparency and engagement with shareholders. The partnership ecosystem includes Syntiant as a key partner post-divestiture. Growth indicators include ongoing product innovation and market diversification. The website supports these insights with relevant content and investor information.

Security posture

The current security maturity level is low due to the absence of HTTPS and valid SSL certificates, which is a critical vulnerability. The presence of some security headers like X-Frame-Options and X-Content-Type-Options is positive but insufficient. The site lacks advanced security features such as OCSP stapling and session resumption. No published security or incident response policies reduce transparency and preparedness. Compliance with GDPR is indicated by privacy and cookie policies with consent mechanisms, but security gaps undermine overall data protection. The lack of vulnerability disclosure and security.txt files suggests limited security culture maturity. Immediate remediation is required to mitigate risks associated with unencrypted traffic and potential data interception.

Recommendations

  1. Deploy and maintain a valid SSL/TLS certificate to enable HTTPS across the entire site.
  2. Enable and configure TLS 1.2 or higher protocols with strong cipher suites to secure communications.
  3. Enhance HSTS configuration with includeSubDomains and preload flags to enforce HTTPS.
  4. Implement OCSP stapling and session resumption to improve security and performance.
  5. Publish clear security and incident response policies to improve transparency and readiness.
  6. Establish a vulnerability disclosure program and provide a security.txt file to engage with security researchers.

Contact details published on the site

Addresses
Legal name
Knowles Electronics, LLC
Technical notes

Notes

The website runs on ASP.NET 4.0 with Sitefinity CMS, hosted on AWS infrastructure as indicated by DNS nameservers. It uses modern front-end libraries such as Tiny-slider and HawkSearch for enhanced user experience. Analytics and marketing tools include Google Analytics (both GA4 and UA), Google Tag Manager, and Hotjar, indicating a mature digital marketing strategy. The site is mobile-optimized and SEO-friendly with proper meta tags and Open Graph data. However, the lack of HTTPS and SSL/TLS support is a major technical deficiency. Performance metrics are unavailable, but the use of Imperva CDN suggests content delivery optimization. The site uses standard web fonts from Google Fonts and includes accessibility features such as skip links, though these are basic. Overall, the technical infrastructure is solid but requires urgent security upgrades.
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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