QUICK DEFINITION
Credential Stuffing — Automated attempts to reuse stolen username and password combinations across services.
WHY IT MATTERS
Why Credential Stuffing matters in finance
Password reuse can convert breaches elsewhere into account compromise at financial services.
FINANCIAL SYSTEM CONTEXT
← Back to the Financial Security GlossarySecurity is also a market-infrastructure question
In financial services, credential stuffing should be understood in relation to operational continuity, data integrity, payments, market infrastructure and interconnected dependencies. A control can be technically effective while still leaving material resilience risk if critical services cannot continue or recover during disruption.