We break marketplaces before criminals do.
Abuse testing for platforms that move other people’s money. Run by someone who spent years running trust & safety at RVshare before turning it into a service.
We’ll tell you plainly whether there’s a fit here, and the smallest useful place to start if there is.
- Founder-led
- Evidence-based
- Human-reviewed
- Built for platforms that move money
The abuse types that move money.
- Account takeover
- Payout diversion
- Seller and listing fraud
- Refund and dispute abuse
- Onboarding and identity (KYC)
- Review manipulation
- Off-platform diversion
- Chargebacks and payment risk
- Promo and referral abuse
- Collusion rings
Penetration testers look for bugs in your code. We look somewhere else: the seller running twelve accounts, the payout that quietly changed destinations, the reviews that don’t quite add up.
None of that shows up in a standard vulnerability scan. It’s also where most of the actual money disappears.
Start free. Go deeper when you know what you're looking for.
We recommend the smallest piece of work that answers your question. Sometimes that's the free option below, sometimes it's the full Audit — we'll tell you which.
Abuse Surface Preview
One public flow, tested the way an abuser would. You get a short note with the clearest thing we find, and a call if you want the rest.
Rapid Risk Review
$1,200Focused independent analysis of one specific trust, fraud, abuse, or control question. Written findings within two business days.
Abuse Surface Audit
From $18,000Founding Client Program: $11,000
Every abuse type in scope, 3–4 weeks. Day-90 retest included.
Fractional Head of Trust & Safety
From $4,500/moTiered by company size.
A five-step approach, applied at whatever scale fits.
Understand
Learn the platform, the money flows, and what's driving the concern.
Map
Chart how money, access, and responsibility move across the flows in scope.
Test
Run abuse testing against the flows that apply here.
Prioritize
Rank findings by exposure and sequence what to fix first.
Strengthen
Help close the gaps, and confirm the fix held.
We begin with the least access necessary and expand only when the scope requires it.
Built for organizations where trust is the product.
Online marketplaces and communities
Marketplaces get tested the way abuse happens: fake accounts, listing fraud, account takeover, gamed disputes.
Booking, rental, and service platforms
Booking and rental platforms get hit through payout swaps, faked identities, and conversations that move off-platform to dodge fees.
SaaS and subscription businesses
Subscription revenue leaks through trial abuse, account takeover, and chargebacks filed after the value's gone.
E-commerce and digital services
The losses come from payment fraud, refund abuse, and chargebacks — we test the exact flows where those happen.
High-trust service organizations
Trust is the entire product here, so we test employee access, payment handling, and sensitive records with the same rigor as a marketplace.
Run by someone who's done this from the inside.
TrustCircuit is run by Geovante "Geo" Preston. He tests platforms the way the people trying to abuse them operate, then helps teams build the controls that stop them.
He previously built and led the trust & safety function at RVshare, the peer-to-peer RV rental marketplace.
His approach pairs fraud instincts with QA discipline. Figure out how the system is supposed to work, then find where it breaks. Every claim gets backed with evidence.
- Test before we prescribe anything
- Every finding backed by evidence
- Controls that hold up outside a slide deck
Find out what we'd find, before it costs you anything.
The free preview runs 90 minutes, with no contract and no access to your systems required. It's the fastest way to see what we'd find.
Not ready to talk to anyone yet? Take the free Trust Gap Check — a self-assessment, no call required.