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Security report for citigroup.com

Citigroup Inc. · Finance · United States

Low risk. 2 critical or high findings in Security headers and SSL/TLS.

Security score

82/100

Risk levelLow

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

Citigroup Inc. is a leading global financial institution providing a wide range of banking, investment, and wealth management services to institutional and individual clients worldwide. The website reflects its enterprise-scale operations with comprehensive investor relations, press releases, and detailed business segment information. The technical infrastructure leverages modern web technologies including React and Adobe DTM, with strong privacy and cookie consent implementations via OneTrust. Security posture is robust, featuring HTTPS, security headers, and no visible vulnerabilities, aligned with industry best practices. Overall, the site demonstrates a mature digital presence consistent with a top-tier global bank, supporting trust and transparency for its users.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 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

2 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 X-Frame-Options header

      Prevents clickjacking attacks

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

  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 citigroup.com

This scan found 14 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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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
70
Email security
70
DNS health
90
Network security
100
GDPR outside view
88
Average
82

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

Citigroup holds a strong market position as a global investment bank and financial services provider, targeting institutional clients with cross-border needs, wealth management customers, and U.S. personal banking clients. The business model integrates multiple financial services under one brand, supported by subsidiaries such as Citi Private Bank and Citi Cards. The company maintains compliance with international standards and certifications, enhancing its credibility. The website's content and linked domains indicate a well-established partnership ecosystem and a focus on investor communications and regulatory compliance.

Security posture

The website exhibits a high level of security maturity, with enforced HTTPS, comprehensive security headers, and integration of consent management tools. No exposed sensitive data or vulnerable libraries were detected. The presence of incident response contacts and a vulnerability disclosure program indicates preparedness for security events. GDPR compliance and data protection officer contact information further demonstrate adherence to privacy regulations. Recommendations include continuous monitoring and updating of third-party components and enhancing incident response transparency.

Recommendations

  1. Maintain regular updates and patching of all third-party libraries and frameworks.
  2. Enhance visibility and accessibility of incident response procedures for users.
  3. Continue to monitor and audit privacy compliance, especially with evolving regulations.
  4. Expand transparency on data retention policies and user data handling.
  5. Invest in ongoing security awareness and training to sustain a strong security culture.

Contact details published on the site

Addresses
Legal name
Citigroup Inc.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Citigroup Inc.
Description
Citi is a leading global bank for institutions with cross-border needs, a global provider in wealth management and a U.S. personal bank.
Key services
investment banking, corporate banking, commercial banking, wealth management, payments, credit cards
Content quality
excellent
Branding
consistent

Technology

Stack
React 18.2.0, Adobe DTM, OneTrust, LinkedIn Insight Tag, Facebook Pixel
Frameworks
React
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with OneTrust
  • Use of security headers
  • No exposed sensitive data in HTML
  • Secure forms with no visible vulnerabilities

Analytics and tracking

Services
Adobe Analytics, LinkedIn Insight, Facebook Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
LinkedIn, Facebook
Tracking pixels
LinkedIn Insight, Facebook Pixel, Adobe DTM
Marketing tools
Adobe DTM, OneTrust
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 no blocking or WAF challenges.
  2. Content is rich, professional, and relevant to global financial services.
  3. Strong privacy and cookie consent mechanisms implemented.
  4. Use of modern web technologies and analytics tools.
  5. No suspicious or malicious elements detected.
  6. WHOIS data is privacy protected or unavailable, common for large enterprises.
  7. Security headers and HTTPS are properly configured.
  8. Multiple recent press releases and investor materials available.
  9. Clear contact and corporate information present.
  10. No adult or questionable content detected.
Technical notes

Notes

The website is built on a modern React framework, utilizing Adobe DTM for tag management and OneTrust for privacy compliance. It integrates multiple analytics and tracking services including LinkedIn Insight and Facebook Pixel, balanced with user consent mechanisms. Performance is moderate with good mobile optimization and accessibility features. The site lacks explicit CMS identification but shows a well-structured and professional front-end. Hosting details are not explicitly found but likely enterprise-grade given the scale and security posture. Opportunities exist to optimize loading speed and further enhance SEO metadata.
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

Earlier scans of this domain

  1. 55/100Medium19 findingsView report
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