Generation of security policies for microsegmented computer networks

A computer-implemented method of generating a security policy for a microsegmented computing system is provided. The method includes generating a port service map that indicates inbound packet activity by port for a plurality of network addresses within the microsegmented computing system and a port distribution map that indicates inbound packet activity by port for a plurality of network addresses within the microsegmented computing system, and generating a list of security policy recommendations based on the port service map and/or the port distribution map.