Analysis and field notes on card-testing attacks, false-positive declines, bust-out fraud patterns, and chargeback documentation for SMB payment processors.
Baseline data on false-positive rates, chargeback ratios, and card-testing incident frequency across independent payment facilitators in 2024.
What Visa and Mastercard dispute resolution actually requires, what most processors get wrong, and how structured decision records change the outcome.
The behavioral drift patterns that precede bust-out fraud events — and why 14-day rolling windows catch them before chargeback exposure accumulates.
False-positive declines don't just annoy customers — they drive merchant attrition. The math on what an 8–15% false-positive rate actually costs a processor's portfolio.
How card-testing attacks work, why they spike 3–5x during holiday windows, and what the velocity signatures look like in SMB processor transaction logs.