A solver returns a correct answer, so checking the answer isn't enough. Prosopo detects the round trip to the solver service instead, and the block names the service the attacker was paying.
Industries · Fintech & marketplaces
Stop automated account abuse before it costs you
Block credential stuffing, solver-driven logins, fake accounts and suspicious traffic on the flows that move money, with a reason behind every decision.
What you're up against
Credential stuffing and account takeover
Stolen passwords are tested against your login and password-reset endpoints at scale, from addresses that each look like a different customer.
CAPTCHA-solver services
Attackers pay a dollar or two per thousand solved challenges. Against an account holding real money, a harder puzzle only slows down your customers.
Fake accounts and promotion abuse
Automated signups farm sign-up bonuses, referral rewards and free credit, and give fraudsters a supply of accounts to use later.
Marketplace abuse
Bots scrape listings and prices, post spam and fake listings, and message your users at a scale no person could.
How Prosopo stops it
- Solvers caught by what they can't hide
- A solver service returns a correct answer, so Prosopo doesn't rely on the answer. It detects the round trip to the solver, and names the service on the block.
- Every decision auditable
- Every block names the detector that fired and carries a request ID. Your team can look it up and reconstruct a campaign in an incident review.
- Built for regulated teams
- GDPR compliant, EU-only processing on request, and a data processing agreement on every plan. See security and compliance.
- Proved on your traffic first
- Prosopo Protect starts in observe-only mode, recording what it would block without blocking anything, so you judge it against your own numbers.
Find out how much of your login traffic is automated
A short call with an engineer reviews what's reaching your site, where your current setup leaves gaps, and how an evaluation would be judged. Nothing to install first.
Questions
Something else? Ask an engineer.
How does Prosopo stop CAPTCHA-solver services?
What evidence do we get for audit and incident review?
Every block carries a request ID and names the detector that fired. Requests, fingerprints and timing signals can be broken down by ID, so a campaign can be reconstructed rather than described.
Where is our data processed?
Prosopo processes only the request metadata needed for a decision. Processing can be kept in the EU on request, and every plan comes with a data processing agreement.