Stop Fraud

Pick the attack.
Here's the playbook.

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

Account TakeoverPlaybook
“Customers are getting locked out and we didn’t change anything.”
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
“Our signup form is filling up with accounts that were never real.”
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
“Someone is running card numbers through our checkout.”
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
“Promo codes and signup bonuses are being farmed.”
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
“The same people keep re-using the free trial.”
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
“We ban someone and they are back an hour later.”
One operator, many accounts — marketplaces, creator platforms, games. Hash-only device linking scoped to your account, never across customers.
Stop multi-accounting →
Disposable EmailsPlaybook
“Half our signups use throwaway email addresses.”
Burner inboxes fronting fake signups, trial farms, and promo abuse. One optional field on the evaluate call checks the domain against a continuously refreshed feed — the address itself is never stored.
Stop disposable emails →

Seven 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, burner inboxes for throwaway identities, and automation to scale it.

That's why one integration covers all seven: Maskbreak 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, real numbers in the case studies, and the datacenter ranges these operators launch from in the hosting & cloud provider IP ranges hub.

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