Pervasive computing has made life easy with communication devices. Today devise collaboration has enhanced everywhere in this environment. It has made computing devices invisible and the services. This pervasive framework provides applications with interactions, numerous cooperation and accessibility, and integration. The proposed work enumerates the applications, pervasive security challenges. It provides security predicaments by assigning certificate credentials, access controls, trust management, and some security techniques to overcome the security paradigms in these distributed networks with IoT and the pervasive computing framework. The work also encounters security perplexities in handling the security threats and user interaction issues. Nevertheless, security techniques are listed for various pervasive applications in distinct domains such as healthcare, industries, and transforming sensitive information. The smart applications with smart environments perhaps force towards the new technologies in the pervasive computing outlook. The work also embedded with middleware with the context-based situation in these pervasive applications