Software Defined Perimeter (SDP): A Rick the Toolman episode.
Zero trust is a cybersecurity first principle strategy. Key to deploying a robust program is the Identity and Access Management tactic (IAM). The old perimeter defense model, designed in the 1990s, where network architects allowed good guys (and bad guys) through the perimeter to validate IAM policy seems ridiculous in hindsight. The new model, Software Defined Perimeter (SDP), is not as well known but is probably a better design. In this episode, Rick Howard discusses the history and current state.