Security theater is a term that describes security countermeasures intended to provide the feeling of improved security while doing little or nothing to actually improve security. The term was coined by computer security specialist and writer Bruce Schneier for his book Beyond Fear.
derived from the Wikipedia entry
Despite the connotations of the word theater, those responsible for producing security theater may believe they are providing real security. It is however critical that the producers believe that those exposed to their measures, techniques, and methods will feel more secure. The producers may fail to provide real security either through resource constraint (time, money, personel, etc), failure to properly evaluate the system, or actual intent to decieve.