The rise of security threats, both in their natures (terrorism, cyberterrorism, state espionage, industrial espionage, borders control…) and in their frequencies, force states and private structures to double their efforts to protect their assets and more generally their interests.Thus, the security market shows a very significant growth, both in systems & services offering and in sales volume. To address those needs, the industrial cluster going through a restructuring. Driven by funding, often from the public sector, it has to put in place the technological state of the art conditions, of a high level of strategic consistency / coordination at states level and tomorrow at the European level.In this context, major players have accelerated the development of new technologies and new offers. Furthermore, they started engaging in M&A operations to reach critical size and acquire missing competencies.