Google Cloud has launched "Fraud Defence," which appears to be Web Environment Integrity (WEI) repackaged under a new name. WEI was widely criticized last year as a potential threat to the open web, giving websites the ability to block users based on their browser environment. Now it's back with enterprise branding and a focus on fraud prevention.
WEI: The Return Nobody Asked For
Last year, Google floated a proposal called Web Environment Integrity that would allow websites to verify that users are running "approved" browser environments. The idea was framed as a security measure to combat bots and fraud.
The developer community saw it for what it was: an attempt to DRM the entire web.
The backlash was immediate and intense. Developers pointed out that WEI would give website operators the power to block users based on their choice of browser, operating system, or extensions. It could prevent people from using ad blockers, privacy tools, or alternative browsers. It would give dominant platforms like Google even more control over how people access the web.
Faced with overwhelming opposition, Google appeared to back down. The WEI proposal was quietly shelved.
Except it wasn't.
Same Technology, Different Marketing
Google Cloud's new Fraud Defence service appears to implement the core functionality of WEI, just with different branding and a focus on enterprise customers rather than the broader web.
The service allows websites to verify the "integrity" of users' environments before granting access. That's the same capability that WEI would have provided — the ability to check if users are running approved software in approved configurations.
The difference is positioning. WEI was pitched as a general web standard that any website could implement. Fraud Defence is pitched as an enterprise security product for businesses worried about fraud and abuse.
But the underlying technology enables the same capabilities that developers rejected in WEI.
Why This Matters
The open web is built on the principle that any device with a standards-compliant browser can access web content. You can use Firefox, Safari, Chrome, or a text-based browser from the 1990s. You can run Windows, macOS, Linux, or build your own operating system. As long as your browser implements web standards correctly, websites should work.




