Basics
Fraud detection
fundamentals
The definitions the rest of the site assumes you have. Short, plain, and honest about where each concept stops being useful.
6 Articles
August 2026 Last updated
Guide
Guide
What Is a Residential Proxy, Really?
You see a new signup from Ohio. The IP looks like a normal household broadband connection, not a datacenter, not Tor, not an obvious VPN.
Guide
Guide
Residential Proxy vs Datacenter Proxy
A login flood coming from AWS is noisy. The same attack routed through real household IPs is not.
Guide
Guide
Is Device Fingerprinting Legal? GDPR, ePrivacy, and Fraud Prevention
This comes up in every procurement review and the answers online are uniformly bad — either "it is fine, fraud prevention is a legitimate interest" or "it is illegal without…
Guide
Guide
What a Fraud Detection API Should Catch
A login spike from a new campaign looks great until support tickets, chargebacks, and password reset storms hit a few hours later.
Guide
Guide
Should You Block AI Agents? A Short Decision Guide
Most teams asking this question are really asking two questions at once, and the answers point in opposite directions. Separating them takes about five minutes and saves a quarter of…
Guide
Guide
What Is an Antidetect Browser?
A chargeback spike, a wave of bonus abuse, or hundreds of "new" accounts from supposedly different users can all trace back to the same problem: someone is hiding behind an antidetect stack.