As the Internet and Digital Economy have grown up, the humble Firewall has continued to serve as their go-to security appliance. In this first of a two-part series, we will examine how, in spite of the evolution of the Firewall through a number of shapes, functions, and roles, it remains the security foundation for implementing the strategic pillars of Segmentation, Access Control, and Real-time analytics/action now and into the future.
Change is a fact of life; what doesn’t change usually withers and dies. This is true for both the biological and the digital world. Generally, we make leaps forward because of one or more of the following: