Add Tinfoil Security

README.md

@@ -123,6 +123,7 @@ Table of Contents
   * https://qualys.com/forms/freescan/owasp/ - Find web app vulnerabilities, audit for OWASP Risks
   * [alienvault.com ThreatFinder](https://www.alienvault.com/open-threat-exchange/threatfinder) - Uncovers compromised systems in your network
   * https://duosecurity.com - Two-factor authentication (2FA) for website or app. Free 10 users, all authentication methods, unlimited, integrations, hardware tokens.
+  * https://www.tinfoilsecurity.com/ - Automated vulnerability scanning. Free plan = weekly XSS scans.
 
 ## Management Systems