Is b3.com.br Safe? Security Analysis for B3 S.A. - Brasil, Bolsa, Balcão
https://www.b3.com.br/Check if b3.com.br is a scam or legitimate. Free security scan and reviews.
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SEQ SIA
Lastadijas 12 k-3, Riga, Latvia, LV-1050
Reg. No. 40203410806 • VAT LV40203410806
Support: guard@offseq.com • +371 2256 5353
AI Summary
B3 S.A. is the primary stock exchange operator in Brazil, offering a comprehensive suite of financial market services including trading, clearing, and settlement. The website serves a broad audience ranging from individual investors to large financial institutions, providing access to market data, investment products, and educational resources. The company holds a leading market position in Latin America and operates with a strong brand presence and professional digital infrastructure. Technically, the website is built on modern web technologies including Angular and leverages Cloudflare for DNS and CDN services, ensuring good performance and security. The site incorporates multiple analytics and tracking tools with appropriate privacy and cookie consent mechanisms, reflecting a mature digital compliance posture. Security-wise, the site enforces HTTPS, employs security headers, and maintains ISO 27001 certification, indicating a robust security framework. However, explicit security policies and incident response contacts could be more visible. Overall, the website is professional, trustworthy, and well-aligned with the company's business stature.
Detected Technologies
9 urgent findings need attention
9 high
- + 1 more findings in the full report below
Keep b3.com.br under constant watch
Guard tracks your live infrastructure daily: certificate expiry, DNS & mail authentication drift, uptime changes, subdomain inventory, and unexpected tracker or content shifts. A full timeline captures every diff so you can prove remediation and spot regressions instantly.
Security drift alerts
Risk score drops, new high-severity issues, and header hardening gaps
Compliance watch
GDPR / NIS2 posture changes with governance evidence snapshots
Infrastructure surface
Unexpected open services, SSL expiry, DNS & email authentication changes
Content & tracker intelligence
Marketing tech shifts, analytics drift, and AI recommendation updates
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Security Headers
5 findings
60/100
GDPR Compliance
2 findings
65/100
NIS2 Compliance
8 findings
17/100
Email Security
3 findings
85/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
B3 operates as a critical financial market infrastructure provider in Brazil, facilitating stock and derivatives trading for a diverse client base. Its business model centers on transaction fees, market data sales, and ancillary financial services. The company benefits from a strong regulatory environment and a dominant market position, which supports stable revenue streams. The website reflects this by targeting investors and market participants with clear service offerings and educational content. The presence of certifications and compliance statements enhances credibility. The company appears to invest in digital maturity, leveraging analytics and user experience improvements to maintain competitive advantage. Partnerships and integrations with global platforms like YouTube and Google Tag Manager indicate an active marketing and communication strategy.
Extracted Contact Information
Marketing Intelligence Data
Physical Addresses (1)
Company Registration
B3 S.A. - Brasil, Bolsa, Balcão
Company registration not explicitly found in HTML
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a high level of security maturity with enforced HTTPS, comprehensive security headers, and ISO 27001 certification. The use of Cloudflare DNS and CDN adds a layer of protection and performance optimization. Privacy compliance is evident through cookie consent banners and detailed privacy policies. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the absence of a publicly accessible security policy or vulnerability disclosure program limits transparency in incident response readiness. The site would benefit from publishing explicit security contact channels and a security.txt file to facilitate responsible vulnerability reporting. Overall, the security posture is strong but could be enhanced with improved communication of security governance.
Strategic Recommendations
Priority Actions for Security Improvement
Publish a dedicated security policy page outlining security governance and controls.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
B3 S.A. - Brasil, Bolsa, Balcão
B3 is the main stock exchange in Brazil, providing trading, clearing, and settlement services for financial assets. It serves investors, companies, and market participants with a wide range of financial products and services.
good
consistent
Technical Stack
moderate
good
good
good
Security Assessment
- HTTPS enforced
- Use of security headers
- Cookie consent implemented
- No exposed sensitive data in HTML
- No vulnerable libraries detected
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is professionally designed and maintained by a major Brazilian financial institution.
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Weak X-Frame-Options configuration
LOWCurrent value: "ALLOW-FROM http://bvmf.bmfbovespa.com.br, http://www2.bmfbovespa.com.br, http://www.bmf.com.br, http://www2.bmf.com.br, https://www2.cetip.com.br, http://estatisticas.cetip.com.br, https://sistemasweb.b3.com.br/"
Missing Content-Security-Policy header
HIGHControls resources the browser is allowed to load
Missing Referrer-Policy header
LOWControls referrer information sent with requests
Missing Permissions-Policy header
MEDIUMControls browser features and APIs
Sensitive data may be cached
LOWCache-Control header should include "no-store" for sensitive pages
👤GDPR Compliance
Privacy and data protection assessment under GDPR regulations.
GDPR Compliance
Privacy and data protection assessment
No Privacy Policy found
HIGHGDPR requires a clear and accessible privacy policy
Third-party services without privacy policy
HIGHDetected services: Google Analytics, Facebook, Twitter, LinkedIn, YouTube
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
HIGHNIS2 requires documented cybersecurity and information security measures
No vulnerability disclosure policy
MEDIUMNIS2 encourages coordinated vulnerability disclosure
No security policy documentation found
HIGHNIS2 requires documented cybersecurity governance and risk management
No incident response procedures found
HIGHNIS2 requires documented incident response and business continuity plans
No business continuity planning found
MEDIUMNIS2 emphasizes operational resilience and business continuity
No security contact information
HIGHNIS2 requires clear incident reporting channels
No vulnerability reporting mechanism
MEDIUMClear vulnerability reporting supports coordinated disclosure
No NIS2 reference found
LOWConsider explicitly mentioning NIS2 compliance efforts
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📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
No BIMI Record
LOWBIMI displays brand logos in email clients
No MTA-STS Policy
MEDIUMMTA-STS enforces TLS for email delivery
No TLS-RPT Record
LOWTLS-RPT provides reporting for email TLS issues
SPF Details
DKIM Selectors Found
DMARC Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
Weak Protocols Supported
HIGHServer supports weak protocols: TLSv1.1
Certificate Transparency Not Implemented
LOWCertificate is not logged in Certificate Transparency logs
SSL Certificate Expires Within 90 Days
MEDIUMSSL certificate expires in 78 days
Weak SSL Key Length
HIGHSSL certificate uses 256-bit key, which is considered weak
Mixed Content Detected
MEDIUM2 resources loaded over insecure HTTP
Partial SSL/TLS Assessment
LOWCompleted 3 of 4 security checks due to time constraints
Protocol Support
OCSP Status
📊DNS Health
DNS configuration and security assessment.
DNS Health
DNS configuration and security assessment
DNSSEC Not Enabled
MEDIUMDNSSEC is not configured for this domain
CAA Records Not Configured
LOWCertificate Authority Authorization (CAA) records not found
Domain Transfer Lock Not Enabled
MEDIUMDomain can be transferred without authorization
Domain Delete Lock Not Enabled
LOWDomain can be deleted without additional verification
Domain Registration Details
- •No domain protection locks enabled
DNS Records
DNSSEC Status
DNS Performance
SPF Analysis
⚡Network Security
Port scanning and network exposure analysis.
Network Security
Port scanning and network exposure analysis
Good Network Security Posture
LOWNo unnecessary services detected on common risky ports
How does b3.com.br compare?
See how b3.com.br stacks up against similar websites in the same industry.
🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Technical Analysis
Comprehensive security assessment findings
Additional Findings
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Marketing Intelligence
Contact emails, phone numbers & warm leads
Plan Comparison
| Feature | PDF Report | Marketing+ |
|---|---|---|
| Full security analysis | ||
| Professional PDF export | ||
| Email delivery | ||
| Lifetime access + unlock code | ||
| Contact emails & phones | — | |
| Marketing outreach data | — |
Already purchased?
Order summary
Digital reports are delivered immediately after payment. By continuing you acknowledge the withdrawal waiver described in our Returns & Refunds policy.
Secure payments processed via EveryPay. Prices in EUR; Incl. 21% VAT.
SEQ SIA
Lastadijas 12 k-3, Riga, Latvia, LV-1050
Reg. No. 40203410806 • VAT LV40203410806
Support: guard@offseq.com • +371 2256 5353
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