Short answer
Remote browser isolation (RBI) opens risky websites in an isolated session away from the user's device, so malicious code never runs on it.
In detail: What is Remote Browser Isolation (RBI)
Users can still view the content, which means security teams can reduce risk without blocking large categories of websites outright.
Why organisations use RBI:
- It closes the gap between allowing and blocking: risky or uncategorised sites can be viewed safely instead of being blocked
- It reduces over-blocking and the user frustration that comes with it
- It adds protection for high-risk users, such as executives, who are frequent targets
- It can stop copy, paste, upload and download on sensitive or unknown sites
Cloudflare Browser Isolation renders risky sites remotely on Cloudflare's network and sends only the safe output to the device. It is part of the same platform as Cloudflare Gateway, CASB and DLP, so isolation policies use the same dashboard and policy engine. FirstNet tunes isolation triggers after go-live, so isolation applies where it adds protection without getting in the way of everyday work.