Secure Access Service Edge (SASE) is a technology used to deliver wide area network (WAN) and security controls as a cloud computing service directly to the source of connection (user, device, branch office, Internet of things (IoT) device, or edge computing location) rather than a data center. Security is based on digital identity, real-time context, and company and regulatory compliance policies. A digital identity may be attached to anything from a person to a device, branch office, cloud service, application software, IoT system, or an edge computing location. The term was coined by marketing analyst firm Gartner.
The practice of backhauling all WAN traffic over long distances to one or a few corporate data centers for security adds network latency when users and their applications are dispersed, rather than on-premises.