This project proposal outlines an investigation into the security of mobile phone communication applications, focusing on identifying existing threats and vulnerabilities. The project aims to review the security systems of these apps, identify security gaps, and propose solutions to protect user data. The methodology includes literature review, gap analysis, and the development of a prototype security model. The project will be managed using a waterfall approach, with a detailed task breakdown and weekly plan. Potential risks, such as project delays and device security breaches, are addressed with mitigation strategies. The final deliverable will be a comprehensive research report including a literature review and security recommendations. The communication plan involves weekly meetings and email updates to ensure project progress and address any challenges.