Secure multi-party computation (SMPC) in cloud environments is an efficient method for preserving customer privacy in networked applications. Secure Multi-Party Computation (SMPC) enables many events to do interactive calculations safely and in a designated manner, while keeping their data concealed from one another. The parties partition the calculation into smaller sub-tasks that are amenable to encryption. They then safely perform the computation of the shared result using cryptographic protocols such as holomorphic encryption, Yao's protocol, and cryptographic verifiable codes. These cryptographic techniques enable cloud service providers to preserve the confidentiality of clients' data and activities while also allowing third parties to audit and verify the accuracy of the computations. This solution offers a superior level of security compared to the traditional client-server model, as the cloud environment can be continuously analyzed and altered in real-time. SMPC offers numerous advantages compared to public-key infrastructure (PKI) solutions. This is because the encryption and decryption of data occur within the SMPC protocol itself, eliminating the need for external key management and certification. On average, Secure Multi-Party Computation (SMPC) can greatly improve the confidentiality of data and activities within cloud environments.