CMMC Level 2 Assessment Guide

CMMC Level 1 Assessment Guide

Carnegie Mellon University – Top 10 Secure Coding Practices

US-CERT – Recommended Practice: Improving Industrial Control System Cybersecurity with Defense-in-Depth Strategies

Forcepoint – What is Defense In Depth?

National Checklist Program Repository

The University of Texas at Austin Information Security Office – System Hardening Guides

NIST SP 800-171A Assessing Security Requirements for Controlled Unclassified Information

Qualys SCA – Security Configuration Assessment

University of California Berkeley – Secure Device Configuration Guideline