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Security report for bdo.be

BDO Belgium · Finance · Belgium

Low risk. 1 critical or high finding in SSL/TLS.

Security score

85/100

Risk levelLow

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

BDO Belgium is a professional services firm specializing in audit, tax, advisory, accounting, ESG, legal, and workforce services tailored to a broad range of industries including financial services, automotive, healthcare, and more. The website demonstrates a strong market position with comprehensive service offerings and a focus on sustainability and risk management. Technically, the site is built on modern frameworks such as React and Kentico CMS, with integrated analytics and marketing tools including Google Tag Manager, Marketo, and Microsoft Application Insights. The security posture is solid with HTTPS enforced and cookie consent mechanisms in place, though improvements in security headers and explicit incident response information are recommended. Overall, the website is professional, well-structured, and compliant with privacy regulations, reflecting a mature digital presence for a large enterprise in Belgium.

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

1 finding rated critical or high. Fix these first.

  1. 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

      SSL Certificate Expires Soon

      SSL certificate expires in 8 days

      What to do: Renew SSL certificate before expiration

      • NIS2 21(2)(h)
      • IR 2024/2690 9.2(c): Implementing Regulation (EU) 2024/2690, Annex point 9.2(c): Cryptography
      • NIST SC-17: NIST SP 800-53 Rev. 5 SC-17: Public Key Infrastructure Certificates

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

Keep watching bdo.be

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

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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
85
Security headers
70
Email security
80
DNS health
85
Network security
100
GDPR outside view
88
Average
85

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention bdo.be, from OffSeq Breach.

Total records
72
Employees
4
Customers
16
Third parties
52
Weak passwords
11%

Latest record dated 2026-05-25 · 4 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for bdo.be.

Select it in the checkout above.

Masked preview

  • –adfs.bdo.be2026-05-25
  • –adfs.bdo.be2026-05-11
  • –adfs.bdo.be2025-08-31
  • –adfs.bdo.be2025-07-20

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Open in Breach(opens in a new tab)Monitor on Breach(opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

BDO Belgium operates in the finance sector, targeting Belgian businesses across multiple industries. Their business model revolves around providing multidisciplinary consulting and financial services. The company leverages a strong partnership ecosystem, including BDO Global, and maintains a consistent brand presence. The website content and structure indicate a focus on transparency, sustainability, and client engagement through reports, insights, and tailored services. The firm appears to be large in size with a comprehensive service portfolio and a strong emphasis on risk management and ESG compliance, positioning it competitively in the Belgian market.

Security posture

The website employs HTTPS with a valid SSL configuration and integrates cookie consent tools to comply with GDPR. It uses reputable analytics and marketing platforms, which are activated based on user consent, indicating privacy-aware data collection. However, the absence of explicit security headers such as Content-Security-Policy and X-Frame-Options suggests room for improvement. No vulnerabilities or exposed sensitive data were detected in the content. The lack of published security policies or incident response contacts on the site limits transparency in security governance. Overall, the security maturity is good but could be enhanced by publishing more security documentation and implementing additional HTTP security headers.

Recommendations

  1. Implement comprehensive HTTP security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  2. Publish a dedicated security policy and incident response information to improve transparency and trust.
  3. Add a vulnerability disclosure policy and security.txt file to facilitate responsible reporting.
  4. Enhance contact information visibility for security and privacy inquiries.
  5. Regularly audit third-party scripts and tracking tools to ensure they remain secure and privacy-compliant.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
BDO Belgium
Description
BDO Belgium provides audit, tax, advisory, accounting, ESG & sustainability, legal, and people & workforce services tailored to various industries including financial services, automotive, healthcare, and more.
Key services
Audit & Assurance, Accounting & Reporting, Advisory, Tax, ESG & Sustainability, Legal, People & Workforce
Content quality
excellent
Branding
consistent

Technology

Stack
React, Google Tag Manager, Marketo Munchkin, Cookiebot, Microsoft Application Insights, Swiper.js, Kentico CMS (implied by content bundle path)
Frameworks
React
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism
  • Application Insights monitoring

Analytics and tracking

Services
Google Analytics, Microsoft Application Insights, Marketo Munchkin
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Marketo Munchkin, Microsoft Application Insights
Marketing tools
Marketo, Cookiebot
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 professional design.
  2. Strong focus on business services in finance and advisory sectors.
  3. Comprehensive cookie consent and privacy mechanisms implemented.
  4. No explicit contact emails or phone numbers found on homepage; likely on dedicated contact pages.
  5. Use of modern JavaScript frameworks and analytics tools.
  6. No visible security headers detected in provided data; recommend adding.
  7. WHOIS data is restricted by DNS Belgium policy, limiting domain registration transparency.
Technical notes

Notes

The website is built using React and Kentico CMS, leveraging modern JavaScript libraries and frameworks. It integrates multiple analytics and marketing tools such as Google Tag Manager, Marketo Munchkin, and Microsoft Application Insights, with cookie consent controlling activation. The site is mobile-optimized and demonstrates good SEO practices with appropriate meta tags and structured navigation. Performance is moderate, with preloading of fonts and CSS assets. The technical infrastructure is robust but could benefit from enhanced security headers and more explicit accessibility features. Hosting details are not explicitly identified but likely managed by a professional hosting provider given the use of Azure Application Insights.
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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