We're reading from Marcus Renum's 'Six Dumbest Ideas in Computer Security'. A challenging, and if you can appreciate sardonic pomposity, a very funny take on enduring ideas that are intuitive, simple and... wrong. Marcus is credited as being the inventor of the proxy firewall and wrote this article in 2005. Almost 20 years later, many of the problems remain, not just unsolved, but, comprehensively worse. In this episode, we're covering Default Permit.