Industry Standards

Center for Internet Security Critical Security Controls

Site: https://www.cisecurity.org/
Standard : Critical Security Cotnrols  v7.1
Cost: Free by providing email

(Optional) Aerospace Industry Association

Site: https://www.aia-aerospace.org
Standard: National Aerospace Standard (NAS) 9933
Cost: $60 – AIA Store

NIST Standards

NIST Cyber Security Framework
Site: https://www.nist.gov/cyberframework

NIST Risk Management Framework
Site: https://csrc.nist.gov/Projects/Risk-Management/rmf-overview

Open Web Application Security Project (OWASP) Top 10
Site: https://owasp.org/www-project-top-ten/