QUICK DEFINITION
Access Control — Rules and mechanisms that determine who or what can access systems, data and functions.
WHY IT MATTERS
Why Access Control matters in finance
It limits unauthorized actions and reduces the blast radius of compromised accounts.
FINANCIAL SYSTEM CONTEXT
← Back to the Financial Security GlossarySecurity is also a market-infrastructure question
In financial services, access control 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.