The document discusses various techniques for enhancing communication privacy in mobile ad-hoc networks (MANETs), focusing on mitigating passive and active attacks such as eavesdropping and routing disruptions. It introduces the STAR system for traffic pattern discovery that aims to achieve source/destination anonymity while enhancing traffic efficiency by 95% against attacks. Additionally, it covers the challenges faced in securing MANETs and proposes solutions, including anonymous routing protocols to strengthen communication confidentiality in hostile environments.