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# Cloudflare Client-Side Security: smarter detection, now open to everyone

**[Cloudflare](https://daily.dev/sources/cloudflare)** · 9 min read · 0 upvotes · 0 comments

## Summary

Cloudflare is opening its Client-Side Security Advanced product (formerly Page Shield add-on) to self-serve customers and making domain-based threat intelligence free for all users. The announcement highlights a new cascading AI detection system that combines a Graph Neural Network (GNN) for structural analysis of JavaScript ASTs with an LLM (hosted on Workers AI) as a secondary filter. The GNN flags potentially malicious scripts, and the LLM semantically evaluates flagged scripts to eliminate false positives. This two-stage approach reduced false positives by up to 200x on unique scripts (from ~1.39% to 0.007%). The system assesses 3.5 billion scripts daily and recently caught a novel zero-day attack targeting home routers via compromised browser extensions. The Advanced tier also supports PCI DSS v4 compliance requirements 6.4.3 and 11.6.1.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://blog.cloudflare.com/client-side-security-open-to-everyone/>

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---

Tags: [#machine-learning](https://daily.dev/tags/machine-learning), [#javascript](https://daily.dev/tags/javascript), [#cloudflare](https://daily.dev/tags/cloudflare), [#web-security](https://daily.dev/tags/web-security)

[View this post on daily.dev](https://daily.dev/posts/cloudflare-client-side-security-smarter-detection-now-open-to-everyone-54dlhvq2t)

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