Security guru Bruce Schneier gives an excellent talk at the 2011 TEDX conference. In the talk he discusses the concept of “security theater”, in which we invest in countermeasures (security controls) that provide the feeling of security, while doing little or nothing to actually achieve it.
More from Mr. Schneier on the concept of security theater: https://www.schneier.com/blog/archives/2009/11/beyond_security.html
