"(U)pon Secrecy, Success depends in Most Enterprises and for want of it, they are generally defeated." -George Washington, on OPSEC

OPSEC Primer

OSPA

Training and Awareness

Crime Prevention Through Environmental Design (CPTED)

CPTED involves the manipulation of the environment to deter criminal acts.
Based on historic research from the 1970's, CPETD can be found in modern home and business designs, to include original lighting, walkways, etc, as well as security-focused home-improvement measures.

More information on CPTED:

What is CPTED?

CPTED for Home/Business

Home Improvement Methods

CPTED for Business

Resources