Asset protection is a higher priority for business today than at any time since World War II. Never before have there been so many private companies offering security services and today the security industry is a major employer in every developed country. The 9/11 terrorist attacks in the USA was the catalyst for exponential growth in an industry that had already been growing rapidly for many years. The evolution of security has been dramatic in terms of the essential integration of the latest technology and highly trained people. This article explores an aspect of security which is largely ignored: the holistic approach to security. This approach calls for security planning to take into account the needs of the entire business. Customer relations and sales opportunities are every bit as important as asset protection under holistic principles.