Public-facing security analysis of Fortune 500 IT & SaaS vendor domains — email authentication, SSL certificates, and network exposure.
By Jorge Corona, Founder of IT Folder
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Or view directly without emailOur analysis revealed significant security gaps across the Fortune 500's IT and SaaS vendor ecosystem.
Only 40% of vendors have SPF + DKIM + DMARC fully configured, leaving most domains vulnerable to spoofing attacks.
FTP, RDP, Telnet, and database ports are publicly reachable on nearly half of all scanned domains.
84% are on TLS 1.3 — SSL/TLS configuration is the healthiest security layer we measured.
Most vendor email is susceptible to downgrade attacks due to missing MTA-STS policies.
A comprehensive analysis of your vendors' public-facing security posture — the gaps they may not even know they have.
SPF, DKIM, DMARC, and MTA-STS adoption rates with industry breakdowns.
Protocol versions, certificate grades, and expiration monitoring insights.
Open port analysis revealing FTP, RDP, databases, and other risky services.
Transparent methodology using DNS queries, testssl.sh v3.2, and Nmap.
Your vendors' security posture directly impacts your risk profile. Understanding their public-facing vulnerabilities helps you make informed decisions.
IT Folder includes built-in tools for monitoring domain security, SSL certificates, and email authentication across your entire vendor portfolio.
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