SASE is a term invented by analyst house Gartner. IT represents a systems of security components including cloud-based ones that strengthen security beyond the traditional site-to-site WAN world up to cloud and IoT and mobile users. Zero-trust and cloud access secure brokerage maybe bundled into a SASE solution along with a multitude of additional cyber-security features. The important central theme is a software-based management capability that ties all the working parts together into a single SASE system.
Sourcing an SD-WAN solution is a good time to reconsider your company's overall security posture and how well protected your mobile users and IoT end points are, including how they might be integrated into a single pane of glass for management.
An SD-WAN typically encrypts traffic over the Internet gateways, private dedicated links, and cloud applications. But placing traffic over the public Internet, moving mobile users, white-box solutions, and IoT solutions all raise new potential security vulnerabilities.