Microsoft's Edge Vulnerability Research (VR) team is testing a new feature they've christened, "Super Duper Secure Mode" (SDSM). Super-Duper Secure Mode is all about making Edge more secure without negatively impacting performance.
SDSM works by removing Just-In-Time compilation from the V8 processing pipeline, which will reduce the attack surface that can be used to hack into Edge's systems, as Bleeping Computer (where I first saw the SDSM information) explains. In addition to disabling the JIT, SDSM enables "new security mitigations" to make Edge a more secure browser.
By disabling the JIT, roughly half of the V8 bugs that must be fixed would be removed. This would mean less frequent security updates and fewer emergency patches for users, the researchers noted.
SDSM is still considered to be in the experimental stage. Still, Edge preview testers -- in the Canary, Dev and Beta rings -- can enable it now with a flag by going to edge://flags/#edge-enable-super-duper-secure-mode and turning on the new feature.