Perimeter security: looking back Over the years, the Internet has evolved, and complex systems facing the Internet have evolved too. Traditional security methodology to defend these systems was to build strong walls around your most valuable assets: build a castle and hope it stands against the external adversary. We’ve invested into firewalls, data leakage prevention systems, intrusion detection of all sorts. And what’s behind these walls? Whatever it is, it’s protected, we’ve thou...
