SASE, or Secure Access Service Edge, is an approach that combines networking and security into one service delivered from the cloud. It bundles wide-area networking with tools like firewall, secure web gateway, and VPN into a single platform.
The idea is that people and applications no longer sit inside one building, so the security that used to live at the edge of the office should follow them wherever they go. Because everything is routed through the cloud, users get secure access whether they are at the office, at home, or on the road, and the business stops managing a stack of separate appliances.
