Reddit reviews The Complete Guide to Physical Security

I'm currently writing a post based on my finding from (1) and (2), but there exist sites that demand a high level of protection based on their local risk assessments. Every site shouldn't be cranked to maximum, but certain points are hardened. For example, if a facility received an active threat and live threat, it would make sense to rent more equipment for a short time. Most of the time, facilities have no active threat profile so the security is relaxed.

I disagree with blanket statements like this, security design is a very subtle art.

(1): https://www.amazon.com/Complete-Guide-Physical-Security/dp/1420099639/ref=mt_hardcover?_encoding=UTF8&me=

(2): https://www.amazon.com/Security-Risk-Assessment-Managing-Operational/dp/0128002212/ref=sr_1_2?ie=UTF8&qid=1522720796&sr=8-2&keywords=corporate+physical+security