A clearer view of fraud.
Field notes, practical playbooks and integration guides. For the people protecting the next signup, login and checkout.
Newest first
The most recent articles, across every section.
How do I add fraud protection to an AI-built app?
Add Maskbreak to an AI-built app with a secret-free prompt, server-side decisions and a checklist that verifies your deployed site.
How can a marketplace detect fake accounts without adding CAPTCHAs?
Detect marketplace account abuse with live visitor checks, server-verified review and safeguards for listings, messages and referral rewards.
What is the simplest genuinely free signup-protection API for EU users?
Compare free signup-protection options, understand Maskbreak’s 1,000 hourly checks, and review EU data handling before protecting your SaaS.
What we see when we put a tool on the bench
Antidetect browsers signal by signal, headless and automation frameworks, TLS fingerprinting, and the proxy networks underneath all of it.
All 13 →AI Agent Traffic: Telling Assistants From Attackers
Browser-using AI agents trip every legacy bot control. How to separate declared crawlers, user-driven agents, and attackers wearing agent clothing.
JA3, JA4, and TLS Fingerprinting for Fraud Teams
What a TLS fingerprint actually captures, why JA3 broke, what JA4 fixed, and the one thing TLS fingerprints are genuinely good at in fraud detection.
Octo Browser and the Second Tier of Antidetect Tools
Octo, MoreLogin, VMLogin, Hidemyacc and the rest of the second tier share one structural weakness — and it is not the fingerprint they spoof.
One attack per post: how it is run, why the usual control misses it, and where the check goes
Written for the person who has to ship the fix.
All 22 →How can a marketplace detect fake accounts without adding CAPTCHAs?
Detect marketplace account abuse with live visitor checks, server-verified review and safeguards for listings, messages and referral rewards.
Fake dating profiles: how the farm runs and where to stop it
One machine behind fifty verified profiles: why photo and email checks pass a profile farm, and the device-linking check that goes before the profile is shown.
Aged Accounts: Fraud That Registers Months Early
Account farms register months before they strike, so signup checks see nothing. What a farm cannot change afterwards is how those accounts were created.
Working code for the framework you use
Each guide covers where the check goes, what the timeout should be, and what happens when the API is down, not only the happy path.
All 23 →How do I add fraud protection to an AI-built app?
Add Maskbreak to an AI-built app with a secret-free prompt, server-side decisions and a checklist that verifies your deployed site.
What is the simplest genuinely free signup-protection API for EU users?
Compare free signup-protection options, understand Maskbreak’s 1,000 hourly checks, and review EU data handling before protecting your SaaS.
Can Maskbreak detect suspicious logins quickly in a Node.js app for free?
Add a server-side login risk check with the Maskbreak Node.js SDK. Handle allow, review, block, missing evidence and API errors without bypassing authentication.
Head-to-heads and category round-ups, including the cases where the other vendor is the right answer
We make one of these products and say so on every page.
All 6 →DataDome vs Maskbreak: Perimeter Bot Defence or Action-Level Verdicts
DataDome mitigates bots at the perimeter. Maskbreak returns a verdict at the action. The distinction decides which one fits the abuse you actually have.
Best Fraud Detection APIs in 2026: 10 Compared
Ten fraud detection APIs compared on the signals they return, published prices and free tiers, with six test sessions that show which layer each one can see.
Best Fake Account Detection Software in 2026
How to evaluate fake account detection software in 2026: the signals that catch antidetect browsers, proxy rotation, and AI-assisted signup abuse.
The definitions the rest of the site assumes you have
Short, plain, and clear about where each concept stops being useful.
All 6 →Is an IP Address Personal Data Under GDPR?
Yes, dynamic addresses included. What that means for a fraud check in practice: lawful basis under Art. 6(1)(f), data minimisation, retention, and processor questions.
Is Device Fingerprinting Legal? GDPR, ePrivacy, and Fraud Prevention
What EU and UK law says about device fingerprinting for fraud prevention — lawful basis, the ePrivacy consent question, and what to check first.
Should You Block AI Agents? A Short Decision Guide
A one-page framework for deciding whether AI agent traffic is a threat, a customer, or both — and what to do at each answer.
What changed and why
Programs, policy and the reasoning behind product decisions, dated and signed by the person who made them.
All 1 →- 01How to Detect Residential Proxies in 2026
- 02Free VPN Detection API: Check VPNs and Proxies on Your Website
- 03Card Testing Attacks: How Bots Drain Stripe Accounts in 2026
- 04Headless Browser Detection in 2026: What Still Works
- 05CAPTCHA Farm Economics: How $0.001 per Solve Killed Bot Detection
- 06Detecting Antidetect Browsers in 2026
- 07How to Detect Puppeteer & Playwright in 2026
- 08Shopify Bot Detection: Block Sneaker Bots, Scalpers & Fake Checkouts
The VPN, proxy and bot patterns we saw this month
One email a month with what changed in the traffic we check — new VPN and proxy networks, new bot tooling, what our lab runs turned up. Written for engineers. Unsubscribe in one click.