Browser Isolation: What it is, why it protects you, and the easiest ways to use it

Browser Isolation

What it is

Browser isolation puts your web activity in a safe bubble—a sandbox or remote container—so risky pages can’t touch your actual device. You browse normally; anything malicious stays trapped on the other side.

Why it matters

Most attacks start in the browser (drive-by downloads, fake updates, exploit kits). Isolation keeps clicks and scripts away from your files, passwords, and network—so a bad site becomes a dead end.

How it works 

  • Local sandbox: the page runs in a sealed container on your machine.

  • Remote/Cloud isolation: the page runs on a server; you see a safe visual stream.

  • Policy controls: copy/paste, downloads, and uploads can be allowed or blocked.

When to use it

  • Opening unknown links (support tickets, ads, search results)

  • High-risk roles (finance, HR, admins) or frequent research on shady sites

  • Shared computers, kiosks, and BYOD environments

Good to know

  • It reduces risk, not judgment—phishing can still trick users to share data.

  • Remote isolation can add a bit of latency; tune policies for key workflows.

  • Pair with MFA, EDR, and DNS filtering for layered defense.

Quick start

  1. Pick a solution (local sandbox for individuals, remote isolation for teams).

  2. Set simple rules: allow known sites, restrict downloads elsewhere.

  3. Train users: “unknown link? open in isolation.”

    Glossary (A–Z)

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