# Cloudflare WAF checks attack success before blocking

> Cloudflare's new security rules check if an attack worked before blocking responses.
- Title: Cloudflare WAF checks attack success before blocking
- Summary: Cloudflare's new security rules check if an attack worked before blocking responses. Cloudflare updated its web application firewall to detect successful…
- Keywords: breaking, cloudflare, waf, web application firewall, attack detection, response rules, full transaction detection, technology, checks, attack, success, blocking
- Source: RuntimeWire — https://runtimewire.com/article/cloudflare-waf-full-transaction-detection-response-rules
- Author: RuntimeWire
- Published: 2026-10-21T14:20:58.636+00:00
- Read time: 1 min
- Topics: breaking, cloudflare, waf, web application firewall, attack detection, response rules, full transaction detection, technology, ai
## Cloudflare updates security rules
Cloudflare's web application firewall now checks application responses after suspicious requests to identify successful exploits.
## New capabilities announced
Cloudflare announced full-transaction detection and response rules on October 21st to stop origin replies from reaching requesters.
## Why it matters
This helps security teams gather evidence for blocking exploits while keeping software patching essential.
## Key takeaway

Cloudflare updated its web application firewall to detect successful exploits by checking application responses after suspicious requests.