The removal of funds from bank accounts through automated teller machines (ATMs) by unauthorized means and without the knowledge or consent of the account holder. Banks have maintained that such withdrawals are not possible without the collusion, intended or unintended, of account holders by divulging their personal identification numbers (PINs) to a third party or lending their ATM card to someone else.

• asset value
• assignment
• assignment of insurable interest
• assignment of life policies
• associate company
• Association for Payment Clearing Services
• Association of African Development Finance Institutions
• Association of British Insurers
• Association of Corporate Treasurers
• Association of Futures Brokers and Dealers Ltd
• Association of International Bond Dealers
• Association of Lloyd's Members
• Association of Natural Rubber Producing Countries
• Association of Private Client Investment Managers and Stockbrokers
• Association of Tin Producing Countries
• assurance
• assured
• AST
• ASX
• asymmetric information
• asymmetric margining
• asymmetric payoff
• at
• at best
• at call