Skip to main content

Security report for gilead.com

Gilead Sciences, Inc. · Healthcare · United States

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

74/100

Risk levelMedium

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

Gilead Sciences, Inc. is a leading biopharmaceutical company focused on innovative therapies in HIV, liver disease, cancer, and inflammation. The company operates globally with a strong pipeline and extensive clinical programs. Their website reflects a mature digital presence with comprehensive content targeting patients, healthcare professionals, investors, and researchers. The business model centers on research, development, and commercialization of transformative medicines. Technically, the website is built on modern frameworks including Bootstrap 5 and uses Sitecore CMS, supported by a variety of JavaScript libraries and APIs for video and analytics integration. The site is mobile-optimized, accessible, and SEO-friendly, demonstrating a high level of digital maturity. Security posture is solid with HTTPS enforced and privacy mechanisms in place, including cookie consent and privacy policies. However, explicit security headers and incident response information are not publicly documented, representing an area for improvement. No vulnerabilities or exposed sensitive data were detected. Overall, the website is professional, trustworthy, and well-maintained, though the absence of WHOIS data for the domain is unusual and should be verified through official channels. Strategic recommendations include enhancing security transparency and publishing vulnerability disclosure details.

Scanned

NIS2 and GDPR posture

GDPR outside view
73/ 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

4 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 X-Frame-Options header

      Prevents clickjacking attacks

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

  2. GDPR outside view

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

    • 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

  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 gilead.com

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

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

Billed monthly to your card. Cancel anytime. See sample alerts.

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
82
Security headers
35
Email security
75
DNS health
80
Network security
100
GDPR outside view
73
Average
74

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

Gilead Sciences holds a strong market position as a major biopharma entity with a diversified therapeutic pipeline. Their competitive advantage lies in their extensive research capabilities and global reach. Revenue streams are primarily from pharmaceutical sales and research collaborations. The target customer segments include patients with chronic diseases, healthcare providers, and investors. Growth indicators include ongoing clinical trials and significant planned investments. The company maintains a broad partnership ecosystem and emphasizes corporate responsibility and health equity in its operations.

Security posture

The current security maturity level is good, with HTTPS and privacy compliance well implemented. The website lacks explicit security policies and incident response contacts, which are critical for transparency and trust. No high-risk vulnerabilities were found, but the absence of security headers and vulnerability disclosure mechanisms indicates room for improvement. Compliance with GDPR is evident through privacy and cookie policies. Incident response readiness and security culture indicators are not publicly visible, suggesting potential gaps in external communication.

Recommendations

  1. Publish a dedicated security policy and incident response page to improve transparency.
  2. Implement and enforce security headers such as Content-Security-Policy and X-Frame-Options.
  3. Create and maintain a vulnerability disclosure or security.txt file to encourage responsible reporting.
  4. Provide clear contact channels for security incidents, including dedicated security email addresses.
  5. Regularly review and update third-party scripts and analytics tools to mitigate supply chain risks.

Contact details published on the site

Addresses
Legal name
Gilead Sciences, Inc.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Gilead Sciences, Inc.
Description
Gilead Sciences, a biopharma company, achieves bold ambitions to help make the world a healthier place, leading in HIV, liver disease, cancer & inflammation.
Key services
Medicines offered globally, Clinical programs in virology, oncology, inflammation, Research funding programs, Patient assistance programs
Content quality
excellent
Branding
consistent

Technology

Stack
Bootstrap 5, jQuery 3.7.1, Google Tag Manager, YouTube Player API, Vimeo Player API, Typekit Fonts
Frameworks
Bootstrap
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of Google Tag Manager for analytics
  • Cookie consent mechanism present

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and navigation.
  2. Strong corporate branding and consistent design.
  3. Comprehensive information about company, pipeline, research, responsibility, and careers.
  4. Multiple social media channels linked.
  5. Use of modern web technologies and analytics.
  6. No signs of malicious or suspicious content.
  7. WHOIS data unavailable, which is unusual for a large company domain.
Technical notes

Notes

The website infrastructure is robust, leveraging a modern tech stack with Bootstrap 5 and Sitecore CMS. Performance is moderate with room for optimization. The site is fully responsive and accessible, supporting a wide range of devices and users. Technical debt appears low, but the complexity of multiple JavaScript libraries requires ongoing maintenance. Opportunities exist to enhance security configurations and streamline analytics implementations to reduce potential risks impacting business continuity.
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

Reviews of this site

Share your experience with gilead.com. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review gilead.com.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.