A Microsoft Edge browser logo

Despite Microsoft’s slightly annoying tactics to push Edge, it is a soid web browser. One feature that sets it apart from Google Chrome is “Super Duper Secure Mode.” We’ll explain what this is and how you can use it.

What Is Super Duper Secure Mode?

First and foremost, “Super Duper Secure Mode” is not the official name of this feature. It’s still in testing and will be renamed eventually. However, that was the name of the feature flag and appears to be an internal codename that Microsoft engineers still use, so that’s what we’ll be calling it, too.

What does it actually do, though? Microsoft’s security team discovered that the V8 JavaScript engine is the culprit for many security vulnerabilities. The JavaScript engine uses “Just-In-Time Compilation” (JIT) to help speed up JavaScript code on web pages, but it opens up a few vulnerabilities in the browser.

JIT exists to speed up your browsing, but Microsoft says that disabling it doesn’t always have negative effects on performance. Super Duper Secure Mode also enables Control-flow Enforcement Technology (CET), an Intel hardware-based exploit prevention tool that further locks down the browser.

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How to Enable Super Duper Secure Mode

Turning on Super Super Secure Mode is very simple. First, open Microsoft Edge in WindowsMac, or Linux and click the three-dot menu icon in the top-right corner, and then select “Settings.”

Open "Settings" from the menu.

Now go to the “Privacy, Search, and Services” section of the Settings page.

Go to the "Privacy, Search, and Services" section.

Scroll down to “Enhance your security on the web” and toggle the switch on. In older versions of Edge, the section is titled “Enable security mitigations for a more secure browser experience.”

Toggle on "Enhance your security on the web."

You get to choose between “Balanced” and “Strict” modes. Balanced mode will only affect websites you don’t visit often. So if there’s any performance hit, it won’t be on your frequently used websites. Strict mode applies to all websites, which means there’s more potential to notice some slowdowns and wonkiness.

Choose one of the modes.

Lastly, you can click “Exceptions” and add any websites that you don’t want Super Duper Secure Mode to interfere with.

That’s all there is to it. As mentioned, Microsoft is still working on this feature, so it could change a bit over time. It’s a nice simple way to make your web browsing experience just a little more secure.

Profile Photo for Joe Fedewa Joe Fedewa
Joe Fedewa is a Staff Writer at How-To Geek. He has been covering consumer technology for over a decade and previously worked as Managing Editor at XDA-Developers. Joe loves all things technology and is also an avid DIYer at heart. He has written thousands of articles, hundreds of tutorials, and dozens of reviews.
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