Within the context of SD-WAN, what does SIA correspond to?

In Fortinet SD-WAN terminology,SIAstands for Secure Internet Access, and it corresponds to “Remote Breakout.” The SD-WAN 7.4 documentation states:

"Remote Breakout (also known as Secure Internet Access or SIA) allows branch offices to break out internet-bound traffic locally, bypassing the data center or main hub. This architecture optimizes latency for SaaS, IaaS, or public web access, while enabling centralized security inspection either on-premises or in the cloud."

This is a core SD-WAN value proposition, supporting direct-to-internet paths with security controls.