A computer-implemented method for security analysis of a deployment file (F_Config) suitable for being interpreted by an orchestration server of a cluster of servers in order to carry out a deployment of a microservices application, the deployment file (F_Config) comprising containers and pods, the pods being execution groups of the containers, the method comprising the steps of: - extracting (151, 152, 153) from the deployment file a plurality of objects (Obj), each object being an instance of a generic object and each generic object belonging to a library of predefined generic objects; - correlating the plurality of objects with one another, so as to define a plurality of sets of objects (Ens), each set of objects being associated with a container of the deployment file or an execution group of containers of the deployment file; - constructing a graph comprising nodes and links, each node corresponding to a container of the deployment file or to an execution group of containers of the deployment file, and each link corresponding to a security relationship between the two nodes connected by the link, and applying a plurality of security analyses to said graph so as to obtain a plurality of quantitative indicators for each of the nodes and links of the graph, the plurality of security analyses being selected from a set comprising: container vulnerabilities; pod security policies; pod service accessibility; pod service accounts; inter-pod network policies; and, inter-pod affinities and anti-affinities; - rating each of the nodes and links in the graph by calculating an overall vulnerability score from the various quantitative indicators; and - displaying the graph enriched with overall vulnerability scores on a human-machine interface of the orchestration server. - extracting (151, 152, 153) from the deployment file a plurality of objects (Obj), each object being an instance of a generic object and each generic object belonging to a library of predefined generic objects; - correlating the plurality of objects with one another, so as to define a plurality of sets of objects (Ens), each set of objects being associated with a container of the deployment file or an execution group of containers of the deployment file; - constructing a graph comprising nodes and links, each node corresponding to a container of the deployment file or to an execution group of containers of the deployment file, and each link corresponding to a security relationship between the two nodes connected by the link, and applying a plurality of security analyses to said graph so as to obtain a plurality of quantitative indicators for each of the nodes and links of the graph, the plurality of security analyses being selected from a set comprising: container vulnerabilities; pod security policies; pod service accessibility; pod service accounts; inter-pod network policies; and, inter-pod affinities and anti-affinities; - rating each of the nodes and links in the graph by calculating an overall vulnerability score from the various quantitative indicators; and - displaying the graph enriched with overall vulnerability scores on a human-machine interface of the orchestration server.