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Security report for visakorea.com

Visa · Finance · South Korea

Medium risk. 3 critical or high findings in Email security and SSL/TLS.

Security score

75/100

Risk levelMedium

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

Visa Korea's website serves as a localized portal for Visa's digital payment services and products in South Korea. It offers comprehensive information on Visa card types, contactless payment technologies, corporate solutions, and consumer support. The site is well-branded with official Visa logos and links to global Visa domains, reflecting a strong market position as a global leader in digital payments. The technical infrastructure leverages modern web technologies including Stencil.js components, tag management via Tealium and Google Tag Manager, and analytics platforms such as Google Analytics and ContentSquare, ensuring a performant and user-friendly experience. Security posture is robust with HTTPS enforced, cookie consent mechanisms, and no visible vulnerabilities, although explicit security policy pages and vulnerability disclosure mechanisms are absent. Overall, the site demonstrates high professionalism, compliance with privacy regulations including GDPR, and extensive use of advertising and tracking technologies with user consent. The lack of public WHOIS data is noted but does not detract from the site's legitimacy given the brand's global stature.

Scanned

This is an earlier scan of visakorea.com. View the latest report

NIS2 and GDPR posture

GDPR outside view
83/ 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

3 findings rated critical or high. Fix these first.

  1. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • High

      No SPF record found

      SPF helps prevent email spoofing

      What to do: Add SPF record: "v=spf1 include:_spf.yourmailprovider.com ~all"

  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
    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching visakorea.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

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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
52
Security headers
75
Email security
50
DNS health
90
Network security
100
GDPR outside view
83
Average
75

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

Visa operates as a global payment network and financial services provider, targeting both consumers and businesses in South Korea through this localized website. The business model centers on enabling secure digital payments via various Visa card products and innovative payment technologies such as contactless payments. The site highlights Visa's commitment to inclusivity, innovation, and community support, aligning with its global corporate values. The presence of multiple global Visa domains linked from the site indicates a broad partnership ecosystem and a strong international footprint. The website's content and structure support Visa's market leadership and brand trust, catering to a large enterprise scale audience with a focus on financial services and technology sectors.

Security posture

The website exhibits a mature security posture with mandatory HTTPS usage and cookie consent banners ensuring compliance with privacy laws. Security best practices such as rate limiting cookies from Cloudflare and the use of tag management systems for controlled script deployment are evident. However, the absence of explicit security policy or incident response pages and lack of a published vulnerability disclosure or security.txt file represent areas for improvement. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. The site effectively balances user experience with security and privacy compliance, though enhancing transparency around security practices would strengthen trust further.

Recommendations

  1. Publish a dedicated security policy and incident response page to improve transparency and user trust.
  2. Implement and publicize a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  3. Ensure all recommended security headers (e.g., X-Frame-Options, X-Content-Type-Options) are explicitly set and documented.
  4. Consider providing direct company contact emails or phone numbers for support and security reporting to enhance accessibility.
  5. Regularly audit third-party scripts and advertising networks to minimize privacy risks and maintain compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Visa
Description
Visa is a global leader in digital payments, connecting people worldwide to enable secure and convenient financial transactions. The site provides information about Visa cards, payment technologies, offers, and corporate solutions.
Key services
Visa Cards (Infinite, Signature, Platinum, Debit, Contactless), Contactless Payments, Visa Concierge, Visa Direct, Visa B2B Solutions, Visa Analytics and Consulting
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Stencil Components, Google Tag Manager, Tealium Tag Manager, ContentSquare, Cloudflare (implied by cookies)
Frameworks
Stencil.js
Platforms
Visa CDN, Google Analytics, YouTube API
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism
  • No exposed sensitive data in HTML
  • Use of security-related cookies (Cloudflare Rate Limiting)

Analytics and tracking

Services
Google Analytics, ContentSquare, Eloqua
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
DoubleClick, Casale Media, Demandbase, Facebook Ads, Google AdSense, Tremor International
Tracking pixels
ContentSquare, Eloqua, Tealium
Marketing tools
Tealium Tag Manager
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 in Korean targeting South Korean users.
  3. Strong presence of official Visa branding and global Visa domain links.
  4. Comprehensive cookie consent and privacy mechanisms implemented.
  5. No direct company contact emails or phone numbers found; contact is via web form.
  6. WHOIS data is unavailable, which is unusual but not uncommon for large brands using privacy protection or proxy registration.
  7. Use of modern web technologies and tag management systems.
  8. Extensive use of third-party analytics and advertising networks with user consent.
  9. No visible security vulnerabilities or exposed sensitive data.
Technical notes

Notes

The website is built using modern web technologies including Stencil.js for component-based UI, integrated with tag management platforms like Tealium and Google Tag Manager for analytics and marketing scripts. Hosting and CDN services appear to be provided by Cloudflare, enhancing performance and security. The site is mobile-optimized with responsive design and accessibility features. Performance is fast with efficient resource loading and lazy loading of images. The CMS is likely Adobe Experience Manager, indicated by URL patterns and client libraries. Overall, the technical infrastructure is robust, scalable, and aligned with enterprise-grade standards, supporting Visa's global digital presence effectively.
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. 75/100Medium26 findingsView report
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