Last-Click Hijacking
Last-click hijacking is a fraud technique where a bad actor injects an affiliate click just before conversion to steal attribution credit from the partner who genuinely drove the customer.
What it means in practice
Last-click hijacking is an affiliate fraud technique where a malicious actor inserts a fraudulent affiliate click immediately before a user converts, overwriting the tracking cookie or click ID of the legitimate affiliate who actually drove the customer. Because most programmes use last-click attribution, the fraudulent click receives full commission credit. The genuine referring affiliate loses the conversion they earned.
Common hijacking methods include browser extensions that silently fire affiliate redirects when a user visits an operator's site, cookie stuffing scripts embedded in toolbar software, and click injection on mobile where a malicious app detects an imminent install and fires an affiliate click milliseconds before it completes. The result is the same: the conversion is attributed to the hijacker rather than the partner who performed the actual marketing work.
Detecting last-click hijacking requires analyzing click-to-conversion timing patterns. Legitimate affiliate clicks typically show a natural distribution of time intervals between click and conversion. Hijacked clicks cluster at unusually short intervals — often under 5 seconds — because the fraudulent click fires only when the user is already on the conversion path. Operators can use fraud detection systems to flag conversions with suspiciously short click-to-action times, compare against the affiliate's normal traffic patterns, and cross-reference with device fingerprinting data.
How Last-Click Hijacking works across industries
See how last-click hijacking is applied in the verticals Track360 supports, from qualification logic and payout structure to the operational context behind each model.
How Track360 handles this
Track360's fraud detection system analyzes click-to-conversion timing, identifies suspicious attribution patterns, and flags potential last-click hijacking — protecting legitimate affiliates from losing commissions to fraudulent actors.
Frequently Asked Questions
Common questions about last-click hijacking, how it works in affiliate programs, and where it shows up across Track360's supported verticals.
Last-click hijacking is a fraud technique where a bad actor injects a fraudulent affiliate click just before a user converts, stealing the attribution credit (and commission) from the legitimate affiliate who actually drove the customer. It exploits the last-click attribution model used by most affiliate programmes.
Related Terms
Affiliate Fraud
Affiliate fraud is the deliberate manipulation of affiliate tracking, attribution, or conversion data to earn commissions that were not legitimately generated.
Click Injection
Click injection is a mobile ad fraud technique where a malicious app listens for install broadcasts and fires a fake click just before installation completes to steal affiliate attribution.
Cookie Stuffing
Cookie stuffing is the fraudulent practice of placing affiliate tracking cookies on a user's browser without their knowledge or any genuine click, allowing the affiliate to claim unearned commissions when the user later converts organically.
Click Fraud
Click fraud is the fraudulent practice where fake or manipulated clicks are generated on affiliate tracking links to inflate performance metrics, steal attribution, or trigger unearned commissions.
Last-Click Attribution
Last-click attribution is a model that gives the final click before a conversion the whole sale, so the last referring partner earns all the commission.
Device Fingerprinting
Device fingerprinting is a technique that identifies a device by combining attributes like browser, OS, and screen into a signature used for fraud detection.
Fraud Detection
The systematic identification of suspicious activity in affiliate, IB, and partner programs across clicks, conversions, identity verification, and ongoing user behavior.
Affiliate Fraud Score
An affiliate fraud score is a numerical risk rating assigned to affiliate traffic or conversions, indicating the likelihood of fraudulent activity.
Continue Learning
Free structured courses that cover this topic and more.
Setting Up an iGaming Affiliate Program
iGaming affiliate program setup. GGR vs. NGR, player tracking, MGA/UKGC/Curacao compliance, and how to scale.
Casino Affiliate Program Management
How to build and manage casino affiliate programs. Covers RevShare, NGR, player attribution, fraud prevention, and multi-brand operations.
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