Webgrafía
OWASP - Analysing Networks with NMAP
TheHackerWay - Técnicas de Recolección de Información – Scripting con NMAP
Securitytrails - Top exploit databases
The security risks of outdated software
Patch Management: Benefits and Best Practices
Seven best practices for managing software patches and updates
Offense and Defense – A Tale of Two Sides: (Windows) OS Credential Dumping