The rise of cloud computing has significantly impacted software organizations and the design of software architecture. As cloud computing and mobile internet continue to evolve, mobile cloud computing is emerging as a new application model. This model combines three key technologies: mobile computing, cloud computing, and wireless technology. Mobile cloud computing has become a crucial and advanced technology today, yet mobile devices still face several challenges. These include issues related to storage, security, privacy, and connectivity. Mobile cloud computing offers resources and services from the cloud to mobile devices, supporting the development of specialized mobile applications. However, data outsourcing and synchronization over the Internet introduce increased risks to security and privacy. This research paper explores mobile cloud computing, its security challenges, and proposes potential solutions.