The changed geopolitical situation, terrorist attacks, and innovation of informatics systems caused a pressing challenge for the world. Defence forces during asymmetric operation have new enemies who use urbanization affected advantages [1]. Defence of formerly building public facilities, support of staff and clients also to the defence of system apparatus tasks' needs a hinder solution for information security damage and assurance of the TEMPEST defence [2]. It is important to prohibit any opportunity of a radio impulse activated by an explosion in a building (Improvised Explosive Device IED). Radio wave transfer decrease or isolation can be solved by a special wall on the base on the Faraday cage. This is the best solution for using a metal coating on the wall. These composites can be built from metal foams or composite metal foams. The coating can also be built from polymer base metal parts. Numerous kinds of composites can be constructed, but the requirements are rigorous. The innovated material needs to be fire resistant and splinter-proof. The tests of these materials also need a special method to simulate and model special stress and special radiation effects. Nowadays, living in the information technology age, the possession of information is the power of living and working safely in our countries and knowing our virtual goods are secured against terrorists and enemies. Its assurance is a big challenge and it needs a lot of innovation supported by cyber and material science.