Stop Fraud

Pick the attack.
Here's the playbook.

Account takeover, fake signups, card testing, bonus abuse, trial farming, multi-accounting — different losses, same toolkit underneath. Each playbook shows which signals fire, where the check goes, and what the API returns.

Account TakeoverPlaybook
Credential stuffing behind rotating residential proxies and stolen sessions replayed in antidetect browsers. Catch the new-device + VPN + automation shape on established accounts.
Stop account takeover →
Fake SignupsPlaybook
Bot-registered accounts, disposable emails, and proxy-masked registrations poisoning your funnel metrics. Score the signup before the account exists.
Stop fake signups →
Card TestingPlaybook
Bots validating stolen cards on your checkout with small authorizations. Block them before the payment intent — and before the dispute rate spikes.
Stop card testing →
Bonus & Promo AbusePlaybook
Signup bonuses, referral rewards, and deposit matches farmed through multi-accounting. Device linking connects the accounts one operator runs.
Stop bonus abuse →
Free-Trial AbusePlaybook
Serial trial accounts burning your compute and quota. The device times-seen counter links trial #2 through #50 to the same laptop.
Stop trial abuse →
Multi-AccountingPlaybook
One operator, many accounts — marketplaces, creator platforms, games. Hash-only device linking scoped to your account, never across customers.
Stop multi-accounting →

Six attacks, one integration

Every playbook above describes a different loss — hijacked accounts, poisoned funnels, dispute rates, drained promo budgets. Underneath, the operators use the same 2026 toolkit: residential proxy networks for clean IPs, antidetect browsers for fresh device fingerprints, and automation to scale it.

That's why one integration covers all six: Sentinel evaluates the device, connection, and behavior of every session in under 40 ms, and your rules decide what a risky signup, login, or checkout means for your business. Industry-specific views live under use cases, and real numbers in the case studies.

Free tier: 1,000 requests/hour. No card, no expiry.
No card. No demo call. Get an API key in under 5 minutes.
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