<p>This study aims to enhance data security and intrusion prevention in Hypervisor Environments by implementing a robust authentication mechanism. Initially in this study, we secure data from legitimate nodes using ECC, ensuring data confidentiality and integrity on the server. To enhance prevention mechanism, we are implementing a novel Improved Four-Factor Authentication (IFFA) protocol to grant access to data from the server. The four-factor authentication approach involves hybrid encryption on the key, random number, timestamp, and fingerprints. Furthermore, this study employs Modified Homomorphic Encryption (MHE) with the SHA 3–512 hashing technique to provide hybrid encryption. These elements include three primary stages that assure security during the authentication procedure among nodes and servers. The efficiency of this suggested system is measured with regard to of communication cost, time complexity, encryption time, decryption time, throughput, and latency.</p>