Our topic is about equipments used for Physical Security such as surveillance cameras, fire detection, access control systems, intrusion detection We will not focus on how those equipments could be defeated but how they could ruin the security level of a whole organisation. Indeed, those equipments are more and more sold as turnkey solutions, deeply integrated within the existing IT network. We will show that those equipments are often overlooked when it comes to IT Security, probably because of the thought: its secure because its for Security.