Seat sharing in SaaS: how to detect it and turn sharers into seats
How to detect seat sharing in a SaaS product: spotting one paid seat used by a whole team, the per-seat revenue it leaks, and how to convert sharers.
Blog / Account abuse
Account abuse
How to prevent gaming fraud: theft, RMT, and multi-accounts
How to prevent gaming fraud: account theft and resale, real money trading farms, cheating and smurfing, and the device signals that link the accounts.
How to prevent marketplace fraud: types, signals, and the actor behind them
The main types of marketplace fraud, from triangulation fraud to seller and buyer scams, and how reading the device behind each account links the ring.
The 8 best free-trial abuse prevention tools in 2026
The 8 best free-trial abuse prevention tools in 2026, how prevention works by linking many trial signups back to one device, and how to choose.
How to prevent refund and return abuse
How to prevent refund and return abuse: the multi-account refund-ring slice you can detect, how it differs from wardrobing and chargebacks, and how to read it.
How to prevent coupon abuse (and tell it from coupon fraud)
How to prevent coupon abuse: what separates it from coupon fraud and everyday couponing, and how merchants catch one shopper using many accounts.
The 8 best new-account fraud detection tools in 2026
The best new-account fraud detection tools for 2026, how signup-fraud detection links many fake accounts back to one device, and how to choose the right layer.
How to prevent Sybil attacks: catching one actor behind many identities
How to prevent Sybil attacks: the defenses at the protocol and application layers, and how to catch one actor running many wallets at the frontend.
How to prevent bonus, promo, and coupon abuse: a detection playbook for developers
How to prevent bonus, promo, and coupon abuse: the mechanic behind it, the signals that flag an abused offer, and how to score a claim before you credit it.
Trial farming and credit farming on AI products: how one operator drains your free credits
What trial farming and credit farming mean on an AI product, not the gaming kind: how one operator drains free compute credits, and where it is caught.
How to detect fake reviews
What review fraud is, the main types of fake reviews, why the text alone won't catch them, and how the device behind a review ring gives it away.
Free-trial abuse vs API-key abuse vs rate limiting: which layer stops what
Free-trial abuse, API-key abuse, and rate limiting get blamed for each other. Which layer stops what for an AI API, who owns each fix, and where the gap is.