摘要:Problem statement: In this study, we address the security needs in online communications, specifically in the e-health domain. We focus on how to provide different security strengths to different types of communications in e-health, where each communication transmits different types of information with different levels of sensitivity. Approach: The Multi-Agent System (MAS) approach is used to develop an agent-based system that can cater for distributed processes. We use the agents’ characteristics such as autonomous , interactive , extendible and mobile to handle the security processes for users in different environments and devices. We integrate different types of encryption algorithms with different security strengths in order to provide different security needs. Results: We present our security model called MAgSeM that consists of eight agents, which are skilled to complete its goal as well as the overall system goals autonomously. Conclusion: We conclude that MAgSeM security model is suitable not only for the e-health domain, but also other domains that practices online communications.