False Decline
A legitimate customer wrongly rejected by fraud controls — a hidden revenue loss that grows as thresholds tighten.
A false decline (or false positive) is a legitimate customer wrongly rejected because fraud controls flagged them as risky. It is the mirror image of missed fraud.
Why it is costly
False declines are invisible on the fraud-loss line but very real on the revenue line — every good customer turned away is lost lifetime value, and the cost rises as you tighten thresholds to catch more fraud.
How insurance helps
When a wrong approval is insured, you can loosen over-tight thresholds and recover good-customer revenue, because the downside is covered. See fraud loss insurance for fintechs.
Account Takeover (ATO)
A form of third-party fraud where an attacker gains control of a legitimate account and uses it to transact or extract value.
Chargeback Liability
The financial responsibility a business bears when a customer disputes a transaction and the payment is reversed.
First-Party Fraud
Fraud in which a real person uses their own or a manipulated identity to obtain goods, credit, or services they never intend to repay.
Synthetic Identity Fraud
Fraud committed using a fabricated identity that combines real and fake information to pass verification and open accounts.