one time payment security system - Search
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    A one-time payment security system can refer to a system that uses **one-time passwords (OTPs)**or multi-factor authentication (MFA). OTPs are unique, time-sensitive codes sent to the customer's registered device that the customer must enter to complete a transaction. MFA requires cardholders to verify their identities by completing multiple authentication steps before accessing their accounts. Authentication factors include verification codes, security questions, one-time passwords, push notifications, and more.
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