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Mobile agents' paradigm is increasingly being used on the global Internet, distributed systems and ambient intelligence environment. Indeed, they can provide many advantages to the development of dynamic applications. More recently, mobile agent paradigm is of the best prevalent alternatives bringing most of suitable characteristics of pervasive environments, where people are surrounded by intelligent interfaces merged in daily life objects. Yet, the success of dynamic environment based mobile agents and multi agent systems will depend on how secure it can be made. Certainly, their use poses many security threats, because they are exposed to different malicious hosts' and nodes attacks. The aim of this paper is to propose CAPMA, Clone agent to protect mobile agents. The approach is based on adaptability concept and a clone agent, which is a prototype of the mobile agent with no critical code and …