What is Browser Isolation?
A security technique that runs web browsing in an isolated environment, preventing malicious websites from accessing your device or local network.
Browser isolation prevents web-based threats from reaching your actual device.
Types
- Remote browser isolation: Browsing happens on a remote server; only the visual output is sent to your device
- Local isolation: Browser runs in a sandbox/container on your device
- Disposable browsers: Temporary browser instances that are destroyed after use
Tools
- Qubes OS: Each browser window runs in a separate virtual machine
- Whonix: Isolates Tor browsing in a separate VM
- Docker-based browsers: Run browsers in disposable containers
- Brave: Strong per-site isolation with partitioned storage
When to Use
- Visiting untrusted websites
- Researching sensitive topics
- Opening suspicious links
- Separating personal and work browsing
Related Terms
Browser Fingerprinting
A tracking technique that collects information about your browser, device, and settings to create a unique identifier. Unlike cookies, fingerprints are nearly impossible to delete and can track you across websites without your knowledge or consent.
Private Browsing
A browser mode that doesn't save history, cookies, or form data after the session ends. Despite its name, private browsing only provides local privacy—it doesn't hide your activity from websites, ISPs, or network administrators.
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