fix the bugs. keep it corpo, choom.

Hardening checklists for CyberPatriot competition images and for everyday devices: Windows 10 and 11, Windows Server, Ubuntu, Linux Mint, Debian, FreeBSD, Cisco Packet Tracer, macOS, iPhone and iPad, Android and ChromeOS. Every step says why it matters, how to do it by hand and from the command line, and what breaks if you get it wrong.

• Checklists per operating system
• Presets for common scenarios
• Lessons with quizzes
• Drills: README audit, planted config lines, decoding, subnetting, ports
• Reference tables: ports, event IDs, SIDs, permissions, encodings