Security Across Services in Microservice Architecture

Micro Service architecture (MSA) of software development is a thing which has done wonders in scaling and making the application more modular.Nevertheless, its distributed nature creates issues on security.In this paper service to service communication, identity management and API security across microservices are investigated.It provides quantitative analysis regarding how the trend), how much performance overheads are incurred (is) and how the vulnerability is distributed (about).The results show that zero trust models, service mesh integration and decentralized authentication add much to the resilience with small latency trade off.In other words, the study brings a practical security framework for MSA environments with data driven insight.Aiding developers and architects in protecting microservices in dynamic and scalable systems is part of what this research is.