The plan is to create a provocatively named “Super Duper Secure Mode” in Edge that deliberately disables support for the browser’s JavaScript JIT (Just-in-Time) compiler while adding a major anti-exploitation roadblock from Intel Corp.

The new SDSM test — available in Edge preview builds for select users — essentially rips out JIT, a feature that makes browsers run faster but data shows that these components introduce attack surfaces that have already been exploited in malware campaigns.