Merchant & POS
What Is a PIN Pad Device?
A PIN pad lets cardholders safely enter their PIN during POS transactions and lets contactless cards be tapped to transfer card data to the POS. Here is how it works.
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Payment Systems
What is Store and Forward (SAF)?
Store and Forward (SAF) describes offline transaction processing. It was originally developed when modems were introduced and connections were not always stable, letting terminals store transactions and forward them once connectivity is restored.
Merchant & POS
What is a Pin Entry Device (PED)?
Pin Entry Device is another name for the PIN pad device we all know and use daily. It makes it easier for users to enter their card PIN during POS transactions with credit or debit cards, and is used for contactless card reading...
Merchant & POS
What Is a Contactless Reader?
These are devices connected to a POS terminal that allow fast payments, up to a certain limit, using contactless credit cards or prepaid cards by tapping them on the contactless reader instead of the POS's card reader. Can every POS have a contactless reader attached?
EMV
What Is the Visa EAS Server?
The Visa EAS Server (Extended Access Service) is a server used in Visa’s authentication infrastructure. It was developed to run the cardholder authentication process securely between banks and the Visa network, particularly within Visa Secure (3-D Secure 2.x).
Laws & Regulations
What Are the Visa Core Rules and Visa Product and Service Rules Documents? How Can I Access Them?
The Visa Core Rules and Visa Product and Service Rules documents define the fundamental rules that apply to all institutions in the Visa network. They are updated regularly, and all members are expected to follow the latest version.
Payment Systems
Preventing Financial Losses in Payment Systems: Authorization, Clearing, and the Reversal Mechanism
Every payment transaction completes in seconds, yet dozens of controls run behind the scenes. This post covers the precautions for authorization and clearing, the critical role of reversals, and the financial loss scenarios most often seen in the field.
Merchant & POS
What Are the Partial Authorization Requirements for an Acquirer Bank?
Partial authorization lets an issuer approve part of the requested amount when the card lacks the full balance, with the rest paid another way. This post covers the technical, receipt, clearing, reconciliation, merchant and certification requirements for acquirers.
Payment Systems
What is Soft POS? What are the important points in the Soft POS process?
Soft POS is a POS application that lets merchants accept payments from contactless cards or mobile wallets on Android devices, without needing a physical terminal. Companies market it under various names such as pocket POS or mobile POS.
Credit Card
What Is the Communiqué on the Management of Information Systems Used in Bank Card and Credit Card Transactions?
This communiqué sets the rules for managing information systems used in bank card and credit card transactions. Card scheme operators, issuers, acquirers, merchants and outsourced service providers are all within its scope.
Security
Why Is AWS (Amazon Web Services) Preferred?
The number of companies offering cloud computing and storage has grown sharply in recent years. AWS, founded in 2006, is the world's largest cloud computing and storage provider, ahead of Google Cloud, Microsoft Azure and IBM.
Security
What Is the Visa PIN Security Program Guide?
The Visa PIN Security Program Guide describes the security and procedural requirements for acquirers and their agents that process PIN data or manage keys for PINs associated with Visa transactions.