Resources
Payment Security Glossary
Plain-English definitions of key terms in payment security, PCI compliance, and secure telephone payments.
PCI Compliance
Payment Security
Payment Methods
Payment Processing
Payment Cards & Networks
Contact Centre
Regulation & Standards
Digital & Emerging
All Terms A-Z
3D Secure / SCA3D Secure 2 (3DS2)ABA Routing NumberAccount TakeoverACH PaymentAcquiring BankAddress Verification Service (AVS)Agent-Assisted PaymentsAI PaymentsAmerican ExpressAnti-Money Laundering (AML)API IntegrationApproved Scanning Vendor (ASV)Attestation of ComplianceAuthorisationAutomatic Call Distributor (ACD)Average Handling Time (AHT)Batch ProcessingBIN (Bank Identification Number)Biometric AuthenticationBusiness Associate AgreementCall RecordingCall Reference NumberCaptureCard IssuerCard Not Present (CNP)Card on FileCard SchemeCard Security CodeCard SurchargingCard Testing FraudCardholder Data Environment (CDE)CCaaSCCPAChargebackChargeback FraudChargeback RepresentmentClearingCloud Contact CentreCompensating ControlsComputer Telephony Integration (CTI)Contact Centre PaymentsContactless PaymentsConversational CommerceCPRACredit Card NumberCRNCross-Border PaymentsCryptocurrency PaymentsCustomer Satisfaction Score (CSAT)CVV / CVC / CV2Data BreachDebit CardDescoping PCI DSSDevice FingerprintingDigital Payment PlatformsDigital WalletDirect DebitDiscoverDispute ResolutionDTMF MaskingDunningDynamic Currency Conversion (DCC)Electronic MoneyEmbedded PaymentsEMV ChipEncryptionEnd-to-End Encryption (E2EE)Failed Payment RecoveryFCA Consumer DutyFedNowFirewallFirst Call Resolution (FCR)Fraud PreventionFriendly FraudFTC Safeguards RuleGDPRHashingHeadless CommerceHIPAA Payment ComplianceHosted Payment PageHSA/FSA Card PaymentsIdentity TheftInstant Bank TransferInterchange FeesInternal Security Assessor (ISA)Intrusion Detection System (IDS)Invisible PaymentsInvoice FactoringIVR PaymentIVR PaymentsJCBKey ManagementKnow Your Customer (KYC)Luhn AlgorithmMachine Learning Fraud DetectionMagnetic StripeMastercardMerchant AccountMerchant Category Code (MCC)Merchant Discount Rate (MDR)Merchant Reference NumberMobile NFC PaymentsMOTO PaymentsMulti-Factor Authentication (MFA)NACHANet Promoter Score (NPS)Network SegmentationOmnichannel PaymentsOpen BankingOpen Banking APIOpen Banking PaymentsPAN (Primary Account Number)Partial RefundPause and ResumePayment AggregatorPayment AutomationPayment Card Industry (PCI)Payment CompliancePayment ExperiencePayment Facilitator (PayFac)Payment GatewayPayment Gateway APIPayment IntegrationPayment LinkPayment OrchestrationPayment ProcessorPayment ReconciliationPayment ReferencePayment ReminderPayment SDKPayment Security StandardsPayment Service Provider (PSP)Payment Services DirectivePayment TermsPayment Tokenisation ServicePCI DSSPCI DSS CompliancePCI DSS LevelsPCI DSS Non-CompliancePCI DSS ScopePCI DSS v4.0PCI SSCPenetration TestingPoint-to-Point Encryption (P2PE)Pre-AuthorisationPSD2PSTNPull PaymentPush PaymentQR Code PaymentsQualified Security Assessor (QSA)Quality MonitoringReal-Time PaymentsRecurring BillingRefundRegulation EReport on Compliance (ROC)Revenue RecoveryRisk ScoringRTPSanctions ScreeningSAQ (Self-Assessment Questionnaire)Secure Telephone PaymentsSensitive Authentication Data (SAD)Sentiment AnalysisSettlementSIP TrunkingSmart RoutingSpeech AnalyticsStanding OrderSTIR/SHAKENStrong Customer Authentication (SCA)Subscription ManagementTCPATelephone BankingTelephone Payment SolutionsTokenizationUCaaSVelocity ChecksVirtual TerminalVisaVoice CommerceVoid TransactionVoIPVulnerability ScanningWebhookWebRTCWire TransferWorkforce Management
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