Cloudflare launches Adaptive Intelligence to dynamically rewrite bot rules

New bot frameworks and bypass techniques are folded into the model as they appear. The rules it produces are short-lived and narrow, each aimed at a specific threat, and rotate often enough that an attacker probing a site is mapping a defense that has already changed.

Cloudflare argues that renting a botnet no longer requires much skill or money. Attackers can route traffic through real home internet addresses, and free software covers the rest of the impersonation. Failed attempts are nearly free at volume. Security teams do not have that margin, and conventional tools still rely on scheduled updates that can take weeks or months to deploy, while attacker tooling turns over in hours.

Cloudflare Chief Technology Officer Dane Knecht said “building taller walls fails when the cost of scaling an attack is effectively zero.” He said a fixed defense is a problem attackers can eventually solve, and Adaptive Intelligence aims to keep the target moving so engineering work put into a bypass is obsolete before the operation gets to scale.

The engine expands the window it analyzes, looking at behavior across several timeframes at once to surface slow campaigns hidden under rate thresholds, such as drawn-out credential stuffing and scraping runs.

Feeding the engine is Precursor, Cloudflare's browser-level system that became generally available in July, which logs visitor movements, scrolling and typing across a full session rather than testing once on arrival. Cloudflare said the combination of session signals and edge telemetry lets the system judge visitor intent beyond a binary pass/fail at the door. New detections test themselves against live traffic in the background, verifying accuracy and screening for false positives before deployment, with no downtime.

Bots account for a growing share of web traffic. Cloudflare said in July that bots made up roughly 57% of web requests when Precursor reached general availability. Bot management is also a wholesale business for Cloudflare, with WP Engine Inc. building its bot controls on top of the network.

Adaptive Intelligence is available now to Cloudflare Bot Management customers. Pricing was not disclosed.