Vendor fraud detection software
Catch vendor fraud before the payment leaves your AP workflow
Vantirs verifies every vendor payment instruction against your historical QuickBooks data and stops bank account fraud, BEC scams, and fake invoices before a single dollar moves — with specific, explainable signals your team can act on.
61% of BEC attacks in 2026 use vendor email compromise — sending fraud from real, compromised vendor inboxes.
Microsoft Q1 2026 Email Threat Landscape Report
Before Vantirs
AP team receives an invoice from a known vendor with updated bank details. The sender domain looks correct. The amount matches the project. Two approvers sign off. $284,000 wires to a fraudulent account. Funds are unrecoverable.
After Vantirs
Same invoice arrives. Vantirs flags: new beneficiary account — this vendor has received 47 payments, always to routing ×××4821. This payment routes to ×××9103, never previously used. AP team pauses, calls vendor directly. Fraud confirmed. Payment stopped.
What Vantirs flags
Six fraud signals caught before payment approval
Every flag includes the specific anomaly — not just a risk score — so your team can review, escalate, or approve with full context.
Vendor bank account changes
Any incoming payment instruction with a beneficiary account that differs from your verified history for that vendor. The highest-risk event in AP.
Lookalike sender domains
BEC and VEC attacks use domains like acme-corp.com instead of acmecorp.com. Vantirs checks sender domains against known vendor identities in your books.
Invoice amount anomalies
Invoice amounts that fall outside the statistical distribution of what this vendor has historically invoiced — flagged with the actual variance, not just a risk score.
First-time payment destinations
Any payment going to a bank account that has never received money from your organization — regardless of whether the sender appears legitimate.
New vendor high-risk requests
Vendors with no payment history requesting large transfers or unusual payment methods receive automatic elevated scrutiny.
Urgency and pressure patterns
Language patterns associated with BEC urgency tactics, correlated with payment-instruction anomalies for compound risk scoring.
How it works
Three steps from connection to fraud prevention
Connect QuickBooks Online
OAuth connection to your QBO account. No data migration, no IT project. Vantirs reads your existing vendor and payment history to build behavioral fingerprints for every vendor in your books.
Vantirs monitors every invoice
As invoices enter your AP queue, Vantirs compares payment instructions, sender identity, amounts, and timing against each vendor's verified historical pattern. Deviations generate specific, reviewable flags.
Your team reviews before payment
Alerts arrive via Slack and email with the exact anomaly described. Your AP team approves, escalates, or rejects with full context — and every decision creates an audit trail that supports NACHA compliance and internal review.
Built for the teams that actually process payments
Accounting firms
You process payments for multiple clients across dozens of vendor relationships. One breach doesn't just cost money — it costs a client relationship and your firm's reputation. Vantirs gives you consistent controls across every client's AP without adding headcount.
Built for accounting firms →AP teams at mid-market companies
Your team approves hundreds of invoices a week. Manual review can't scale, and a single missed fraud event can exceed an entire year of software spend. Vantirs surfaces only the flagged items so your team spends scrutiny where it matters.
AP fraud prevention →CFOs and finance directors
You carry the liability if a fraudulent wire goes through. Vantirs gives you an auditable record that risk-based controls are operating before every payment — supporting NACHA 2026 compliance and cyber-insurance documentation.
CFO fraud prevention →What changes when you add Vantirs
| Scenario | Without Vantirs | With Vantirs |
|---|---|---|
| Vendor sends updated bank details | AP team approves based on relationship trust | Flagged: new beneficiary account, no history — requires out-of-band verification |
| Invoice arrives from lookalike domain | Passes email security — domain spoofing not caught | Flagged: sender domain does not match verified vendor identity in QBO |
| Invoice amount is 3x normal range | Passes dual-approval if both approvers know the vendor | Flagged: amount 3.2x above 90th percentile for this vendor — escalate before approval |
| NACHA compliance audit | Manual documentation of controls — inconsistent and time-consuming | Audit trail auto-generated: every flag, reviewer decision, and timestamp recorded |
Learn more about payment fraud
Frequently asked questions
What is vendor fraud detection software?
Vendor fraud detection software checks incoming invoices and payment instructions against your verified vendor history to surface mismatches — such as changed bank accounts, spoofed sender domains, or atypical invoice amounts — before any payment is approved or released.
How does Vantirs detect vendor fraud in QuickBooks Online?
Vantirs connects to your QuickBooks Online account via OAuth and builds a behavioral fingerprint for each vendor using historical payment data. When a new invoice or payment request deviates from that fingerprint — different bank account, unusual amount, lookalike email domain — Vantirs flags it with a specific, reviewable reason before your AP team approves payment.
What types of vendor fraud does Vantirs catch?
Vantirs detects business email compromise (BEC), vendor email compromise (VEC), fake invoice fraud, vendor bank account change fraud, duplicate invoices, and ghost vendor activity. It focuses on payment-instruction anomalies — the signals that appear right before a fraudulent payment would leave your account.
Is this only for large enterprise AP teams?
No. Vantirs is purpose-built for accounting firms and mid-market finance teams that need real fraud signals without a complex enterprise rollout. It connects to QuickBooks Online and surfaces risk in the workflows you already use.
How long does it take to get started?
Most teams are reviewing live fraud signals within one business day. Connect your QuickBooks Online account, and Vantirs begins building vendor fingerprints from your existing payment history immediately.
How does Vantirs compare to Eftsure or Trustpair?
Eftsure and Trustpair are built for large enterprise rollouts with long implementation cycles. Vantirs is optimized for accounting firms and mid-market finance teams on QuickBooks Online — faster to deploy, transparent pricing, and controls that map to how your team actually reviews AP.
Stop fraudulent payments before the money leaves
Connect Vantirs to QuickBooks Online and start reviewing live fraud signals within one business day.
No IT setup · Connects to QuickBooks Online · NACHA 2026 audit trail included